Int (sinx + cosx) (sinx - cosx) dx
Matematika
timbercruiser
Pertanyaan
Int (sinx + cosx) (sinx - cosx) dx
1 Jawaban
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1. Jawaban arsetpopeye
∫ (sin x + cos x)(sin x - cos x) dx
= ∫ (sin² x - cos² x) dx
= ∫ -(cos² x - sin² x) dx
= ∫ - cos 2x dx
= -1/2 sin 2x + C