yz-discuss-forum?question_id=192999-BD-Merit-Freelancing,-BCS,-Bank,-Primary,-Admission,-NTRCA

Discuss Forum

1. $a - \frac{1}{a}$

Answer: Option D

Explanation:

a^{3} - 1 / a^{3} = {(a - 1 / a)}^{3} + 3 . a . 1 / a (a - 1 / a) = {(5)}^{3} + 3.5 = 125 + 15 = 140

Post your comments here:

Name:

Mobile:

Email:(Optional)

» Your comments will be displayed only after manual approval.