Difference between revisions of "1993 AHSME Problems/Problem 1"
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For integers <math>a,b,</math> and <math>c</math> define <math>\fbox{a,b,c}</math> to mean <math>a^b-b^c+c^a</math>. Then <math>\fbox{1,-1,2}</math> equals: | For integers <math>a,b,</math> and <math>c</math> define <math>\fbox{a,b,c}</math> to mean <math>a^b-b^c+c^a</math>. Then <math>\fbox{1,-1,2}</math> equals: | ||
| − | <math>\text{(A)} -4\quad | + | <math>\text{(A) } -4\quad |
| − | \text{(B)} -2\quad | + | \text{(B) } -2\quad |
| − | \text{(C)} 0\quad | + | \text{(C) } 0\quad |
| − | text{(D)} 2\quad | + | \text{(D) } 2\quad |
| − | \text{(E)} 4</math> | + | \text{(E) } 4</math> |
== Solution == | == Solution == | ||
| + | |||
| + | Plug in the values for <math>a,b,c</math> and you get <math>1^{-1} - (-1)^2 + 2^1 \Rightarrow 1-1+2 \Rightarrow \fbox{2}</math> | ||
| + | |||
<math>\fbox{D}</math> | <math>\fbox{D}</math> | ||
Latest revision as of 00:27, 30 November 2016
Problem
For integers 
and 
define 
to mean 
. Then 
equals:
Solution
Plug in the values for 
and you get 
See also
| 1993 AHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 1 |
Followed by Problem 2 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 • 26 • 27 • 28 • 29 • 30 | ||
| All AHSME Problems and Solutions | ||
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
