Matematika

Pertanyaan

1 a. Integral sin x . cos x dx
b. Integral sin 3x . cos 3x dx
c. Integral sin²x dx

2 a. Integral 2 sin 4x . cos 2x dx
b. Integral cos 6x . sin 3x dx
c. Integral cos 4x . cos 6x dx
d. Integral sin 2x . sin x dx

1 Jawaban

  • InTegraL

    ∫sn x cos x dx
    = 1/2 ∫sin 2x dx
    = -1/4 ∫dcos 2x
    = -1/4 cos 2x + C

    ∫sin 3x cos 3x dx
    = 1/2 ∫sin 6x dx
    = -1/12 ∫dcos 6x
    = -1/12 cos 6x + C

    ∫cos 6x sin 3x dx
    = 1/2 ∫(sin 9x - sin 3x) dx
    = -1/18 cos 9x + 1/6 cos 3x + C

Pertanyaan Lainnya