化简 (cos(x))/((tan(x))(1-sin(x)))

解答

化简

\frac{cos ( x )}{( tan ( x ) ) ( 1 - sin ( x ) )}

\frac{cos ( x ) cot ( x )}{- sin ( x ) + 1}

求解步骤

\frac{cos ( x )}{( tan ( x ) ) ( 1 - sin ( x ) )}

使用基本三角恒等式:

\frac{1}{tan ( x )} = cot (x)

= \frac{cos ( x ) cot ( x )}{- sin ( x ) + 1}

s im pl i f y (x - 25)^{2}

e x p an d \frac{( x + 3 ) ( x - 2 )}{( x + 2 ) ( x - 1 )}

s im pl i f y (e^{i x} - e^{- i x})^{2}

\frac{\partial}{\partial y} ((z) (4 x^{2} y + 3 y - 5))

e x p an d (x + y - 1) d x - (2 x - y + 1) d y