展开 (x^2-1)8-xdx

解答

展开

(x^{2} - 1) 8 - x d x

8 x^{2} - 8 - x d x

求解步骤

(x^{2} - 1) \cdot 8 - x d x

= 8 (x^{2} - 1) - x d x

乘开

8 (x^{2} - 1) : 8 x^{2} - 8

= 8 x^{2} - 8 - x d x

e x p an d e^{x} \cdot (1 - cos (y))

s im pl i f y cos^{2} (x) (2 + tan^{2} (x)) - 1

s im pl i f y (e^{z}) \circ (z^{4} + i z^{2} + (3 - i))

e x p an d \frac{2 ( 33 - 417 )}{3}

e x p an d \frac{x ^{5} + 34.5 x ^{4} + 64 x ^{3} + 54}{x ^{4} ( x - 1.5 ) ^{2}}