展开 6/((2t+7)^4)

解答

展开

\frac{6}{( 2 t + 7 ) ^{4}}

\frac{6}{16 t ^{4} + 224 t ^{3} + 1176 t ^{2} + 2744 t + 2401}

求解步骤

\frac{6}{( 2 t + 7 ) ^{4}}

(2 t + 7)^{4} = 16 t^{4} + 224 t^{3} + 1176 t^{2} + 2744 t + 2401

= \frac{6}{16 t ^{4} + 224 t ^{3} + 1176 t ^{2} + 2744 t + 2401}

e x p an d \frac{x ^{2} + 1}{x ^{2}}

e x p an d - \frac{1}{3} \cdot 6 x

e x p an d (1 - x y) d y

\frac{d}{d y} ((x) (x y + e^{x y}))

e x p an d x + (1 - x) \cdot ln (1 - x)