Matematika

Pertanyaan

Integral 5 sin 7x cos 2x dx

1 Jawaban

  • InTegraL

    5 sin 7x cos 2x
    = 5/2 . 2 sin 7x cos 2x
    = 5/2 (sin 9x + sin 5x)

    ∫5 sin 7x cos 2x dx
    = 5/2 ∫(sin 9x + sin 5x) dx
    = 5/2 (-1/9 cos 9x - 1/5 cos 5x) + C
    = -5/18 cos 9x - 1/2 cos 5x + C

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