Practicing Success
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What is the value of $\frac{(a+b)^2 -(a -b)^2}{ab}$? |
1 4 8 2 |
4 |
$\frac{(a+b)^2 -(a -b)^2}{ab}$ = ? Put the value of a and b = 1 $\frac{(a+b)^2 -(a -b)^2}{ab}$ = $\frac{(1+1)^2 -(1 -1)^2}{1}$ = 4 |
