∫sin²x dx equals:
∫sin²x dx equals:
- A. x/2 − (sin 2x)/4 + C
- B. x/2 + (sin 2x)/4 + C
- C. cos²x + C
- D. 2sin x cos x + C
Answer: A) x/2 − (sin 2x)/4 + C
Explanation: Using identity sin²x = (1 − cos 2x)/2. ∫(1 − cos 2x)/2 dx = x/2 − (sin 2x)/4 + C.
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