sin 12x = cos x, 0 ≤ x ≤ 2π
Tentukan himpunan penyelesaian dari persamaan trigonometri berikut!
sin 12x = cos x, 0 ≤ x ≤ 2π
Jawab:
sin 12x = cos x = sin (½π – x), sehingga diperoleh:
Jadi, himpunan penyelesaiannya adalah {π/26, π/22, 5π/26, 5π/22, 9π/26, 9π/22, π/2, 13π/22, 17π/26, 17π/22, 21π/26, 21π/22,25π/26, 29π/26, 25π/22, 33π/26, 29π/22, 37π/26, 3π/2, 41π/26, 37π/22, 45π/26, 41π/22, 49π/26}
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1 comment for "sin 12x = cos x, 0 ≤ x ≤ 2π"
terimakasih..