∫(sin x + cos x) dx equals:
∫(sin x + cos x) dx equals:
- A. cos x − sin x + C
- B. −cos x + sin x + C
- C. −cos x − sin x + C
- D. cos x + sin x + C
Answer: B) −cos x + sin x + C
Explanation: ∫sin x dx = −cos x and ∫cos x dx = sin x. Sum is −cos x + sin x + C.
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