展开 xln^2(x)-2(xln(x)-x)

解答

展开

x ln^{2} (x) - 2 (x ln (x) - x)

x ln^{2} (x) - 2 x ln (x) + 2 x

求解步骤

x ln^{2} (x) - 2 (x ln (x) - x)

乘开

- 2 (x ln (x) - x) : - 2 x ln (x) + 2 x

= x ln^{2} (x) - 2 x ln (x) + 2 x

e x p an d (sin^{4} (x) + cos^{4} (x - 1)) (sec^{2} (x) + csc^{2} (x))

e x p an d \frac{0.714 ( x ^{2} + 1.39 x + 1274209.9 )}{x ( x + 1.59 ) ( x ^{2} + 1.06 x + 1274212.3 )}

e x p an d - \frac{36 ( - x ^{2} + 1 )}{( x ^{2} + 3 ) ^{3}}

e x p an d \frac{( 6 - x ) ^{4}}{81}

s im pl i f y (x^{3} + \frac{1}{x ^{3}}) (x^{3} - \frac{1}{x ^{3}})