Difference between revisions of "1962 AHSME Problems/Problem 12"

(Created page with "==Problem== When <math>\left ( 1 - \frac{1}{a} \right ) ^6</math> is expanded the sum of the last three coefficients is: <math> \textbf{(A)}\ 22\qquad\textbf{(B)}\ 11\qquad\text...")
 
(Solution)
Line 5: Line 5:
  
 
==Solution==
 
==Solution==
"Unsolved"
+
{{solution}}

Revision as of 22:53, 10 November 2013

Problem

When $\left ( 1 - \frac{1}{a} \right ) ^6$ is expanded the sum of the last three coefficients is:

$\textbf{(A)}\ 22\qquad\textbf{(B)}\ 11\qquad\textbf{(C)}\ 10\qquad\textbf{(D)}\ -10\qquad\textbf{(E)}\ -11$

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.