展开 (Y/(x^2)+2)dx

解答

展开

(\frac{Y}{x ^{2}} + 2) d x

\frac{Y d x}{x ^{2}} + 2 d x

求解步骤

(\frac{Y}{x ^{2}} + 2) d x

使用分配律:

a (b + c) = ab + a c

a = d x, b = \frac{Y}{x ^{2}}, c = 2

= d x \frac{Y}{x ^{2}} + d x \cdot 2

= \frac{Y}{x ^{2}} d x + 2 d x

乘

\frac{Y}{x ^{2}} d x : \frac{Y d x}{x ^{2}}

= \frac{Y d x}{x ^{2}} + 2 d x

e x p an d \frac{2 x ( - x ^{4} + y ^{4} ) ^{2}}{y ^{9}}

e x p an d \frac{( x + 4 ) ( x + 5 )}{( x + 1 ) ( x + 2 ) ( x - 3 )}

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

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

e x p an d \frac{( x - 1 ) ( 2 x - 5 )}{( x + 3 )}