GMAT Quantitative Reasoning Practice Test 3

Question : 43 of 100

Marks: +1, -0

What is the reciprocal of

(A B) \/(A+B)^2

Solution:

The reciprocal of

X

1 {/}X

and therefore the reciprocal of

(A B) /(A+B)^2

(A+B)^2 {/} A B

.
Simplify the expression:

(A+B)^2 {/} A B= (A^2+2 A B+B^2) {/} A B=A {/} B+B {/}A+2

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