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Show new changes starting from 18:44, 29 November 2020
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#### 29 November 2020

 17:45 2013 AIME II Problems/Problem 15‎ (diff | hist) . . (-1)‎ . . Firebolt360 (talk | contribs) (→‎Problem 15)
 17:43 User:Piphi/Go‎ (diff | hist) . . (+41)‎ . . Bluedevils (talk | contribs) (→‎Signups)
 17:42 User:Piphi/Connect 4‎ (diff | hist) . . (+20)‎ . . Bluedevils (talk | contribs) (→‎Signups)
 N    17:29 2021 USAJMO‎‎ (2 changes | history) . . (+624)‎ . . [Math31415926535‎ (2×)] 17:29 (cur | prev) . . (0)‎ . . Math31415926535 (talk | contribs) N 17:27 (cur | prev) . . (+624)‎ . . Math31415926535 (talk | contribs) (Created page with "The 50th USAJMO will be held on April 20 and April 21, 2021. The first link will contain the full set of test problems. The rest will contain each individual problem and its s...")
 17:23 USAJMO Problems and Solutions‎ (diff | hist) . . (+17)‎ . . Math31415926535 (talk | contribs)
 16:34 1976 AHSME Problems/Problem 1‎ (diff | hist) . . (0)‎ . . Einsteinstudent (talk | contribs) (→‎Solution)
 N    16:12 1955 AHSME Problems/Problem 17‎ (diff | hist) . . (+1,024)‎ . . Angrybird029 (talk | contribs) (Created page with "If $\log x-5 \log 3=-2$, then $x$ equals: [itex]\textbf{(A)}\ 1.25\qquad\textbf{(B)}\ 0.81\qquad\textbf{(C)}\ 2.43\qquad\textbf{(D)}\ 0.8\qquad\textbf{(...")
 15:37 Algebra‎ (diff | hist) . . (+54)‎ . . Math31415926535 (talk | contribs) (→‎Solve 2 variable equations in less than 5 seconds!!!)
 N    15:33 Telescoping series‎ (diff | hist) . . (+133)‎ . . Math31415926535 (talk | contribs) (Created page with "In mathematics, a telescoping series is a series whose partial sums eventually only have a finite number of terms after cancellation.")
 15:32 Series‎‎ (5 changes | history) . . (+25)‎ . . [Math31415926535‎ (5×)] 15:32 (cur | prev) . . (+25)‎ . . Math31415926535 (talk | contribs) (→‎Common Series) 15:32 (cur | prev) . . (-25)‎ . . Math31415926535 (talk | contribs) (→‎Common Series) 15:31 (cur | prev) . . (+25)‎ . . Math31415926535 (talk | contribs) (→‎Common Series) 15:31 (cur | prev) . . (-25)‎ . . Math31415926535 (talk | contribs) (→‎Common Series) 15:30 (cur | prev) . . (+25)‎ . . Math31415926535 (talk | contribs) (→‎Common Series)
 N    15:31 Telescoping Series‎‎ (2 changes | history) . . (0)‎ . . [Math31415926535‎ (2×)] 15:31 (cur | prev) . . (-24)‎ . . Math31415926535 (talk | contribs) (→‎Telescoping Series) (Tag: Blanking) N 15:30 (cur | prev) . . (+24)‎ . . Math31415926535 (talk | contribs) (Created page with "== Telescoping Series ==")
 14:29 2015 AMC 8 Problems‎‎ (3 changes | history) . . (+181)‎ . . [Chriskm‎ (3×)] 14:29 (cur | prev) . . (-2)‎ . . Chriskm (talk | contribs) (→‎Problem 12) 14:29 (cur | prev) . . (+99)‎ . . Chriskm (talk | contribs) (→‎Problem 12) 14:26 (cur | prev) . . (+84)‎ . . Chriskm (talk | contribs) (→‎Problem 12)
 14:18 2009 AMC 10A Problems/Problem 6‎ (diff | hist) . . (-20)‎ . . Integralarefun (talk | contribs) (→‎Solution)
 14:14 2016 AMC 10A Problems/Problem 20‎‎ (2 changes | history) . . (+210)‎ . . [Bjc‎ (2×)] 14:14 (cur | prev) . . (+210)‎ . . Bjc (talk | contribs) (→‎Solution 2) 14:14 (cur | prev) . . (+210)‎ . . Bjc (talk | contribs) (→‎Solution 2)
 14:12 2009 AMC 10A Problems/Problem 4‎‎ (2 changes | history) . . (0)‎ . . [Integralarefun‎ (2×)] 14:12 (cur | prev) . . (-37)‎ . . Integralarefun (talk | contribs) (→‎Solution) 14:11 (cur | prev) . . (+37)‎ . . Integralarefun (talk | contribs) (→‎Solution)
 14:08 2016 AMC 10A Problems/Problem 19‎ (diff | hist) . . (+20)‎ . . Bjc (talk | contribs) (→‎Solution 1)
 14:03 2016 AMC 10A Problems/Problem 13‎ (diff | hist) . . (+320)‎ . . Bjc (talk | contribs) (→‎Solution 1)
 13:54 2016 AMC 10A Problems/Problem 7‎‎ (3 changes | history) . . (+276)‎ . . [Bjc‎ (3×)] 13:54 (cur | prev) . . (+5)‎ . . Bjc (talk | contribs) (→‎Solution 2) 13:54 (cur | prev) . . (+16)‎ . . Bjc (talk | contribs) (→‎Solution 2) 13:54 (cur | prev) . . (+253)‎ . . Bjc (talk | contribs) (→‎Check)
 13:51 2016 AMC 10B Problems/Problem 22‎‎ (2 changes | history) . . (+79)‎ . . [Andyl‎ (2×)] 13:51 (cur | prev) . . (+20)‎ . . Andyl (talk | contribs) (→‎Solution 2 (Cheap Solution)) 13:50 (cur | prev) . . (+59)‎ . . Andyl (talk | contribs) (→‎Solution 2 (Cheap Solution))
 13:04 2019 AMC 8 Problems/Problem 19‎‎ (2 changes | history) . . (0)‎ . . [Abhiram.jetty.1‎ (2×)] 13:04 (cur | prev) . . (+1)‎ . . Abhiram.jetty.1 (talk | contribs) (→‎Solution 1) 13:03 (cur | prev) . . (-1)‎ . . Abhiram.jetty.1 (talk | contribs) (→‎Solution 1)
 12:00 2003 AMC 8 Problems/Problem 1‎ (diff | hist) . . (+280)‎ . . Math2k06 (talk | contribs)
 11:15 2018 AMC 10A Problems/Problem 14‎‎ (2 changes | history) . . (-48)‎ . . [Sweetmango77‎ (2×)] 11:15 (cur | prev) . . (-27)‎ . . Sweetmango77 (talk | contribs) 11:12 (cur | prev) . . (-21)‎ . . Sweetmango77 (talk | contribs) (→‎Solution 8 (The Slick Solution))
 11:04 2015 AMC 10A Problems/Problem 23‎ (diff | hist) . . (-12)‎ . . Puffer13 (talk | contribs) (→‎Video Solution by Richard Rusczyk)
 11:01 2018 AMC 10A Problems/Problem 3‎‎ (2 changes | history) . . (-247)‎ . . 11:01 (cur | prev) . . (-333)‎ . . Sweetmango77 (talk | contribs) (These two solutions are basically the same, so we only need one of them. The second solution explains it better, so I removed the first one.) 10:46 (cur | prev) . . (+86)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution 1)
 10:59 2020 AMC 8 Problems/Problem 18‎ (diff | hist) . . (+36)‎ . . Sweetmango77 (talk | contribs) (→‎Solution 3)
 10:49 2018 AMC 10A Problems/Problem 7‎ (diff | hist) . . (+87)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution)
 10:49 2018 AMC 10A Problems/Problem 6‎ (diff | hist) . . (+87)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution 1)
 10:48 2018 AMC 10A Problems/Problem 5‎ (diff | hist) . . (+89)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution)
 10:47 2018 AMC 10A Problems/Problem 4‎ (diff | hist) . . (+87)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution 1)
 10:46 2018 AMC 10A Problems/Problem 2‎ (diff | hist) . . (+87)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution 1)
 10:45 2018 AMC 10A Problems/Problem 1‎ (diff | hist) . . (+87)‎ . . Thestudyofeverything (talk | contribs) (→‎Solution)
 09:19 Mock AIME 1 2005-2006/Problem 7‎ (diff | hist) . . (+14)‎ . . Einsteinstudent (talk | contribs) (→‎Solution)
 N    07:07 User:Rayphkin‎ (diff | hist) . . (+2,913)‎ . . Rayphkin (talk | contribs) (Created page with "Learn The Most Vital Aspect About Ufabet Presently, viewing sports tournaments is loved by virtually every person around the world, and there are numerous people who also...")
 N    02:01 User:Somanjaya‎ (diff | hist) . . (+2,362)‎ . . Somanjaya (talk | contribs) (Hasilkan Keuntungan Ini Dari Slot Online Pragmatic)
 00:49 2014 AMC 12B Problems‎ (diff | hist) . . (-14)‎ . . Sugar rush (talk | contribs)
 00:48 2014 AMC 12B Problems/Problem 24‎ (diff | hist) . . (+45)‎ . . Sugar rush (talk | contribs)

#### 28 November 2020

 N    23:49 User:Lil frog‎ (diff | hist) . . (+2)‎ . . Lil frog (talk | contribs) (Created page with "Hi")
 23:44 2020 AMC 10A Problems/Problem 6‎ (diff | hist) . . (-32)‎ . . Logyc (talk | contribs) (→‎Solution)
 23:41 2020 AMC 12A Problems/Problem 2‎ (diff | hist) . . (-33)‎ . . Logyc (talk | contribs) (→‎Solution)
 23:38 2020 AMC 12A Problems/Problem 1‎‎ (2 changes | history) . . (+1)‎ . . [Logyc‎ (2×)] 23:38 (cur | prev) . . (+5)‎ . . Logyc (talk | contribs) (→‎Solution 1) 23:38 (cur | prev) . . (-4)‎ . . Logyc (talk | contribs) (→‎Solution 1)
 23:30 MATHCOUNTS‎‎ (2 changes | history) . . (+138)‎ . . [Icchou233‎ (2×)] 23:30 (cur | prev) . . (-259)‎ . . Icchou233 (talk | contribs) (→‎Chapter Invitational Competition (2021 only)) 23:27 (cur | prev) . . (+397)‎ . . Icchou233 (talk | contribs) (→‎MATHCOUNTS Competition Levels)
 23:15 1986 AJHSME Problems/Problem 24‎‎ (2 changes | history) . . (0)‎ . . [Zoeyjii‎ (2×)] 23:15 (cur | prev) . . (-1)‎ . . Zoeyjii (talk | contribs) (→‎Solution 2) 23:14 (cur | prev) . . (+1)‎ . . Zoeyjii (talk | contribs) (→‎Solution 2)
 N    23:13 Ayy-opsss‎ (diff | hist) . . (+78)‎ . . Smileapple (talk | contribs) (Created page with "the real way to pronouce the word 'AoPS' (not 'alps') (not 'ops') (not 'owbs')")
 23:06 2020 AMC 8 Problems/Problem 16‎‎ (2 changes | history) . . (-1)‎ . . [Sugar rush‎; Rj5303707‎] 23:06 (cur | prev) . . (-12)‎ . . Sugar rush (talk | contribs) 19:00 (cur | prev) . . (+11)‎ . . Rj5303707 (talk | contribs)
 N    22:31 Mobius inversion formula‎ (diff | hist) . . (+448)‎ . . Duck master (talk | contribs) (created page (please expand))
 21:26 2016 AIME I Problems/Problem 3‎‎ (5 changes | history) . . (+80)‎ . . [Andyl‎ (5×)] 21:26 (cur | prev) . . (+16)‎ . . Andyl (talk | contribs) (→‎Solution 3) 21:26 (cur | prev) . . (-17)‎ . . Andyl (talk | contribs) (→‎Solution 3) 21:25 (cur | prev) . . (+1)‎ . . Andyl (talk | contribs) (→‎Solution 3) 21:23 (cur | prev) . . (-4)‎ . . Andyl (talk | contribs) (→‎Solution 3) 21:23 (cur | prev) . . (+3)‎ . . Andyl (talk | contribs) (→‎Solution 3)
 21:12 Bestzack66's AMC10 Study Plan‎ (diff | hist) . . (+96)‎ . . Pm.mathleague.va.champ (talk | contribs) (→‎Feedback)
 20:44 2020 AIME II Problems/Problem 1‎‎ (5 changes | history) . . (+276)‎ . . [Lopkiloinm‎ (5×)] 20:44 (cur | prev) . . (0)‎ . . Lopkiloinm (talk | contribs) (→‎Purple Comet Math Meet April 2020) 20:44 (cur | prev) . . (+1)‎ . . Lopkiloinm (talk | contribs) (→‎Purple Comet Math Meet April 2020) 20:43 (cur | prev) . . (+35)‎ . . Lopkiloinm (talk | contribs) (→‎Purple Comet Math Meet April 2020) 20:42 (cur | prev) . . (+132)‎ . . Lopkiloinm (talk | contribs) (→‎Purple Comet Math Meet April 2020) 20:41 (cur | prev) . . (+108)‎ . . Lopkiloinm (talk | contribs) (→‎Video Solution 2)
 19:58 2009 AMC 12B Problems/Problem 21‎ (diff | hist) . . (+1,786)‎ . . Firebolt360 (talk | contribs) (→‎Clarification of Solution 2)
 19:50 2020 AMC 10A Problems/Problem 13‎‎ (3 changes | history) . . (+272)‎ . . [Andyl‎ (3×)] 19:50 (cur | prev) . . (+70)‎ . . Andyl (talk | contribs) (→‎Solution 5(incorect solution that gives you the correct answer)) 19:50 (cur | prev) . . (+40)‎ . . Andyl (talk | contribs) (→‎Solution 5(Last Resort)) 19:49 (cur | prev) . . (+162)‎ . . Andyl (talk | contribs) (→‎Solution 5(Last Resort))
 18:58 2020 AMC 8 Problems/Problem 22‎‎ (5 changes | history) . . (+35)‎ . . [Rj5303707‎ (5×)] 18:58 (cur | prev) . . (+35)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:53 (cur | prev) . . (+5)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:50 (cur | prev) . . (0)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:50 (cur | prev) . . (+1)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:50 (cur | prev) . . (+29)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions)
 18:56 2020 AMC 8 Problems/Problem 25‎ (diff | hist) . . (+35)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions)
 18:55 2020 AMC 8 Problems/Problem 24‎ (diff | hist) . . (+35)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions)
 18:55 2020 AMC 8 Problems/Problem 10‎ (diff | hist) . . (+1,101)‎ . . Friend5 (talk | contribs)
 18:55 2020 AMC 8 Problems/Problem 23‎‎ (4 changes | history) . . (+36)‎ . . [Rj5303707‎ (4×)] 18:55 (cur | prev) . . (+36)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:53 (cur | prev) . . (+6)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:52 (cur | prev) . . (-1)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:52 (cur | prev) . . (+30)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions)
 18:54 2020 AMC 8 Problems/Problem 21‎‎ (2 changes | history) . . (+34)‎ . . [Rj5303707‎ (2×)] 18:54 (cur | prev) . . (+34)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions) 18:51 (cur | prev) . . (+30)‎ . . Rj5303707 (talk | contribs) (→‎Video Solutions)
 17:32 2005 AMC 12B Problems/Problem 16‎ (diff | hist) . . (+855)‎ . . Silverdragon246 (talk | contribs) (→‎Solution)
 15:43 2018 AMC 8 Problems/Problem 1‎ (diff | hist) . . (-20)‎ . . The pascal triangle (talk | contribs) (→‎Solution 1)
 15:05 2018 AMC 10A Problems/Problem 23‎‎ (3 changes | history) . . (-39)‎ . . [Mathboy282‎ (3×)] 15:05 (cur | prev) . . (0)‎ . . Mathboy282 (talk | contribs) (→‎Solution 7(Slightly different from first solution):) 15:01 (cur | prev) . . (+2)‎ . . Mathboy282 (talk | contribs) (→‎Solution 7(slightly different from first solution):) 15:01 (cur | prev) . . (+1)‎ . . Mathboy282 (talk | contribs) (→‎Video Solution by Richard Rusczyk)
 14:55 2005 AMC 10A Problems/Problem 14‎ (diff | hist) . . (+4)‎ . . Sweetmango77 (talk | contribs) (→‎Solution 3)