展开 1+cos(x)(csc(x)-cot(x))

解答

展开

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

cot (x) - cos (x) cot (x) + 1

求解步骤

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

展开

cos (x) (csc (x) - cot (x)) : cos (x) csc (x) - cos (x) cot (x)

= 1 + cos (x) csc (x) - cos (x) cot (x)

csc (x) cos (x) = cot (x)

= cot (x) - cos (x) cot (x) + 1

e x p an d arctan (f (4 x^{3} + 2))

\frac{d}{d t} ((x) (1 + 6 t))

e x p an d \frac{10}{( s + 1 ) ( s + 2.5 )}

e x p an d (\frac{3}{25} + \frac{i 4}{25}) e^{- x} (cos (2 x) - sin (2 x))

e x p an d - \frac{96 ( 3.5 - 9 x ^{2} )}{( 3 x ^{2} + 3.5 ) ^{3}}