Difference between revisions of "1998 AJHSME Problems/Problem 2"
Mathgeek2006 (talk | contribs) m (→Solution) |
Soccerpro101 (talk | contribs) (→Problem) |
||
Line 1: | Line 1: | ||
== Problem == | == Problem == | ||
− | If <math>\begin{tabular}{r|l}a& | + | If <math>\begin{tabular}{r|l}a&c \ \hline c&d\end{tabular} = \text{a}\cdot \text{d} - \text{b}\cdot \text{c}</math>, what is the value of <math> |
<math>\text{(A)}\ -2 \qquad \text{(B)}\ -1 \qquad \text{(C)}\ 0 \qquad \text{(D)}\ 1 \qquad \text{(E)}\ 2</math> | <math>\text{(A)}\ -2 \qquad \text{(B)}\ -1 \qquad \text{(C)}\ 0 \qquad \text{(D)}\ 1 \qquad \text{(E)}\ 2</math> |
Revision as of 14:39, 20 October 2016
Problem
If , what is the value of ?
Solution
Plugging in values for , , , and , we get
, , , ,
See also
1998 AJHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 1 |
Followed by Problem 3 | |
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 | ||
All AJHSME/AMC 8 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.