展开 ln(2e+3)*(2e+3)

解答

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ln (2 e + 3) \cdot (2 e + 3)

2 e ln (2 e + 3) + 3 ln (2 e + 3)

十进制

17.99160 \dots

求解步骤

ln (2 e + 3) (2 e + 3)

使用分配律:

a (b + c) = ab + a c

a = ln (2 e + 3), b = 2 e, c = 3

= ln (2 e + 3) \cdot 2 e + ln (2 e + 3) \cdot 3

= 2 e ln (2 e + 3) + 3 ln (2 e + 3)

\frac{d ^{2}}{d t ^{2}} ((y) (t^{2} - y))

e x p an d 16 cos^{4} (2) (e^{4 x} \cdot 4 x^{4} + 4 x^{3} e^{4 x})

e x p an d (A e^{t} + B e^{- t})^{2}

e x p an d \frac{- 17 x - 36}{( x + 1 ) ( 5 x + 9 )}

e x p an d (4, - 3) y (1, 3)