化简 (sin(x)tan(x))/(sin(2+y))

解答

化简

\frac{sin ( x ) tan ( x )}{sin ( 2 + y )}

sin (x) tan (x) csc (y + 2)

求解步骤

\frac{sin ( x ) tan ( x )}{sin ( 2 + y )}

使用基本三角恒等式:

\frac{1}{sin ( x )} = csc (x)

= sin (x) tan (x) csc (y + 2)

s im pl i f y 25 \cdot (6 k - 5)^{2} - 64 \cdot (9 k + 4)^{2}

s im pl i f y (1) a sin (a) - b sin (b) - cs in (a - b)

f a c t or 6 x y - 3 y + 4 x - 2

s im pl i f y (\frac{32 x - 5 - 1}{( 3 x - 5 )})^{5}

e x p an d 4 (x + y)^{2} - 1