Berapakah nilai sin C x cos B dan jelaskan caranya

Berapakah nilai sin C x cos B dan jelaskan caranya

*Gambar segitiga ABC

$tan(B) = p = frac{p}{1}\ tan(B) = frac{AC}{AB} = frac{p}{1}\\ BC = sqrt{AC^2+AB^2}\ BC = sqrt{p^2+1^2}\ BC = sqrt{p^2+1}\\ sin(C) times cos(B)\ = frac{AB}{BC} times frac{AB}{BC}\ = frac{1}{sqrt{p^2+1}} times frac{1}{sqrt{p^2+1}}\ = frac{1}{p^2+1}$

Jawaban:

$frac{1}{{p^2+1}}$

Gambar Jawaban