AP EAMCET · Maths · Differentiation
\(\mathrm{y}=a \cos x+(b+2 x) \sin x \Rightarrow y^{\prime \prime}+y=\)
- A \(\cos x\)
- B \(2 \cos x\)
- C \(3 \cos x\)
- D \(4 \cos x\)
Answer & Solution
Correct Answer
(D) \(4 \cos x\)
Step-by-step Solution
Detailed explanation
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