log2(5) ×log5(8)=3步骤
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log2(5) ×log5(8)=3步骤
![log2(5) ×log5(8)=3步骤](/uploads/image/z/19385079-15-9.jpg?t=log2%285%29+%C3%97log5%288%29%3D3%E6%AD%A5%E9%AA%A4)
log2(5) ×log5(8)
=(lg5)/(lg2)×(lg8)/(lg5)
=(lg8)/(lg2)
=(lg2^3)/(lg2)
=3lg2/lg2
=3
=(lg5)/(lg2)×(lg8)/(lg5)
=(lg8)/(lg2)
=(lg2^3)/(lg2)
=3lg2/lg2
=3
log2(5)*log5(8)化简
log2(3)*log3(5)*log5(8)(具体步骤)
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