展开 ln(2)(x-1)

解答

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ln (2) (x - 1)

ln (2) x - ln (2)

求解步骤

ln (2) (x - 1)

使用分配律:

a (b - c) = ab - a c

a = ln (2), b = x, c = 1

= ln (2) x - ln (2) \cdot 1

= ln (2) x - 1 \cdot ln (2)

乘以:

1 \cdot ln (2) = ln (2)

= ln (2) x - ln (2)

e x p an d 55 (2 - 56)

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