展开 6(14ln(2)-3)

解答

展开

6 (14 ln (2) - 3)

84 ln (2) - 18

十进制

40.22436 \dots

求解步骤

6 (14 ln (2) - 3)

使用分配律:

a (b - c) = ab - a c

a = 6, b = 14 ln (2), c = 3

= 6 \cdot 14 ln (2) - 6 \cdot 3

化简

6 \cdot 14 ln (2) - 6 \cdot 3 : 84 ln (2) - 18

= 84 ln (2) - 18

s im pl i f y \frac{4 ( 2 s + 10 ) ( 2 s - 80 )}{s ^{2} - 3200}

e x p an d \frac{( X - 4 ) ^{2}}{2}

e x p an d (x + Δ x)^{3} - 10 (x + Δ x)^{2} + 32 (x + Δ x) - 32

e x p an d \frac{- 4 x ^{2} + 6 x + 4}{( 1 + x ^{2} ) ^{2}}

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