If e 3x cos 4x dx = e 3x (A sin 4x + B cos 4x) + C then :

Maths Indefinite Integral General More Than One Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

4A = 3B

2A = 3B

3A = 4B

4A + 3B = 1

Text Solution

Verified by Experts

The correct answer is:

CHECK THE SOLUTION.

(c,d) Ι = = + C ....(i)

Ι = sin 4x – dx = + – dx

Ι =

comparing with equation (i)

⇒ A = , B = ⇒ = ⇒ 3A = 4B ⇒ 4A + 3B = 1

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