Difference between revisions of "2019 AIME I Problems/Problem 8"

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==Problem 8==
 
==Problem 8==
 
==Solution==
 
==Solution==
Remember <math>sin^2(x)+cos^2(x)=1</math>. This means <math>sin^10(x)+cos^10(x)=(sin^2(x)+cos^2(x))sin^10(x)+(sin^2(x)+cos^2(x))cos^10(x)</math>
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Remember <math>sin^2(x)+cos^2(x)=1</math>. This means <math>sin^(10)(x)+cos^(10)(x)=(sin^2(x)+cos^2(x))sin^(10)(x)+(sin^2(x)+cos^2(x))cos^(10)(x)</math>
  
 
==See Also==
 
==See Also==
 
{{AIME box|year=2019|n=I|num-b=7|num-a=9}}
 
{{AIME box|year=2019|n=I|num-b=7|num-a=9}}
 
{{MAA Notice}}
 
{{MAA Notice}}

Revision as of 19:36, 14 March 2019

The 2019 AIME I takes place on March 13, 2019.

Problem 8

Solution

Remember $sin^2(x)+cos^2(x)=1$. This means $sin^(10)(x)+cos^(10)(x)=(sin^2(x)+cos^2(x))sin^(10)(x)+(sin^2(x)+cos^2(x))cos^(10)(x)$

See Also

2019 AIME I (ProblemsAnswer KeyResources)
Preceded by
Problem 7
Followed by
Problem 9
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
All AIME Problems and Solutions

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