展开 (csc(x)-tan(x))(1+cos(x))

解答

展开

(csc (x) - tan (x)) (1 + cos (x))

cot (x) + csc (x) - tan (x) - sin (x)

求解步骤

(csc (x) - tan (x)) (1 + cos (x))

Apply FOIL method

(csc (x) - tan (x)) (1 + cos (x)) : cot (x) + csc (x) - tan (x) - sin (x)

= cot (x) + csc (x) - tan (x) - sin (x)

e x p an d (2 + 3 i)^{10}

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

e x p an d \frac{12}{( x + 2 ) ^{3}}

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

e x p an d (1 + tan (A))^{2}