展开 (1459)/((1+x)^{10)}

解答

展开

\frac{1459}{( 1 + x ) ^{10}}

\frac{1459}{1 + 10 x + 45 x ^{2} + 120 x ^{3} + 210 x ^{4} + 252 x ^{5} + 210 x ^{6} + 120 x ^{7} + 45 x ^{8} + 10 x ^{9} + x ^{10}}

求解步骤

\frac{1459}{( 1 + x ) ^{10}}

(1 + x)^{10} = 1 + 10 x + 45 x^{2} + 120 x^{3} + 210 x^{4} + 252 x^{5} + 210 x^{6} + 120 x^{7} + 45 x^{8} + 10 x^{9} + x^{10}

= \frac{1459}{1 + 10 x + 45 x ^{2} + 120 x ^{3} + 210 x ^{4} + 252 x ^{5} + 210 x ^{6} + 120 x ^{7} + 45 x ^{8} + 10 x ^{9} + x ^{10}}

e x p an d (x^{2} + 1 - x^{2} + 3 x + 4)^{3}

\frac{d}{d y} ((z) (3 x^{2} y^{2} + 2 z^{2} x y - 2 z x^{3} + 4 z y^{3} - 4))

e x p an d e^{- x^{2} - y^{2}} (x^{2} + 2 y^{2})

e x p an d (\frac{6}{D} v + \frac{6}{D} w)^{2}

e x p an d (N - 4)!