Difference between revisions of "1988 AHSME Problems/Problem 13"
(Created page with "==Problem== If <math>\sin(x) =3 \cos(x) </math> then what is <math>\sin(x)\cos(x)</math>? <math>\textbf{(A)}\ \frac{1}{6}\qquad \textbf{(B)}\ \frac{1}{5}\qquad \textbf{(C)}\ \f...") |
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==Problem== | ==Problem== | ||
| − | If <math>\sin(x) =3 \cos(x) </math> then what is <math>\sin(x)\cos(x)</math>? | + | If <math>\sin(x) =3 \cos(x) </math> then what is <math>\sin(x) \cdot \cos(x)</math>? |
<math>\textbf{(A)}\ \frac{1}{6}\qquad | <math>\textbf{(A)}\ \frac{1}{6}\qquad | ||
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\textbf{(C)}\ \frac{2}{9}\qquad | \textbf{(C)}\ \frac{2}{9}\qquad | ||
\textbf{(D)}\ \frac{1}{4}\qquad | \textbf{(D)}\ \frac{1}{4}\qquad | ||
| − | \textbf{(E)}\ \frac{3}{10} </math> | + | \textbf{(E)}\ \frac{3}{10} </math> |
==Solution== | ==Solution== | ||
Revision as of 01:56, 23 October 2014
Problem
If 
then what is 
?
Solution
See also
| 1988 AHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 12 |
Followed by Problem 14 | |
| 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. 
