Expert Math Class 12 Level 5

What is ∫ x cos x dx?

∫ x cos x dx क्या है?

Show answer and explanation
Correct Answer

B. x sin x + cos x + C

Explanation

Step 1: Identify the concept: integration by parts. Step 2: Using integration by parts and LIATE rule gives x sin x + cos x + C. Step 3: Exam tip: Choose the first function carefully in integration by parts.

Step 1: अवधारणा integration by parts है। Step 2: By parts formula और LIATE rule लगाने पर answer x sin x + cos x + C है। Step 3: याद रखें: By parts में first function सही चुनें।

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