Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If 
= ae x (b(1 – x) sin x + cx cos x) + d, then find the value of 2a + b + c.
Text Solution
Verified by ExpertsThe correct answer is:
1
Ans. 1
Sol. I = 
= xe x sin x – 
= xe x sin x + xe x cos x – 
– 
⇒ 2I = xe x (sin x + cos x) – e x sin x + d
⇒ I = 
e x ((x –1) sin x + x cos x) + d
⇒ a = 
, b = –1, c = 1
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