If and , then at equals | CGP Edu

Maths Functions, Limits, Continuity and Differentiability Telangana & AP CET Previous Year Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

If and , then at equals

A

0

B

C

.

D

1

Text Solution

Verified by Experts

The correct answer is:

Given that, ......(i)
and
Replace by in Eq. (i), we get

........(ii)

On solving Eqs. (i) and (ii) for and Multiply by 8 in Eq. (i) and by 6 in Eq. (ii) and subtract, we get

Multyplying both the sides, we get
Now,
Given

Differentiating it, w.r.t. , we get

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