Diketahui sin b =0,8 hitunglah cos B, tan B, sec B, cosec B dan cotan B

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Diketahui sin b =0,8 hitunglah cos B, tan B, sec B, cosec B dan cotan B

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Gambar Jawaban

sin = frac{de}{mi} \ sin : b = 0.8 \ de = 0.8 \ mi = 1 \ sa = sqrt{ {mi}^{2} - {de}^{2} } \ sa = sqrt{ {1}^{2} - {(0.8)}^{2} } \ sa = sqrt{0.36} \ sa = 0.6 \ \ \ cos : b = frac{sa}{mi} = 0.6 \ tan : b : = frac{de}{sa} = frac{0.8}{0.6} = frac{4}{3} \ sec : b : = frac{1}{cos} = frac{mi}{sa} = frac{1}{0.6} = frac{10}{6} = frac{5}{3} \ cosec : b : = frac{1}{sin} = frac{mi}{de} = frac{1}{0.8} = frac{10}{8} = frac{5}{4} \ cotan : b : = frac{1}{tan} = frac{sa}{de} = frac{0.6}{0.8} = frac{6}{8} = frac{3}{4}
ket :
de = depan
sa = samping
mi = miring
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