展开 ln(2)(x+y)

解答

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ln (2) (x + y)

ln (2) x + ln (2) y

求解步骤

ln (2) (x + y)

使用分配律:

a (b + c) = ab + a c

a = ln (2), b = x, c = y

= ln (2) x + ln (2) y

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

e x p an d (\frac{x + 2}{5})^{2}

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

e x p an d (- 5) \cdot 1 + (- 5) \cdot x

e x p an d x \cdot 7 x^{2}