log2(16分之一)加log4 (8)等于多少
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log2(16分之一)加log4(8)等于多少log2(16分之一)加log4(8)等于多少log2(16分之一)加log4(8)等于多少=log22的(-4)次方+log2²2³
log2(16分之一)加log4 (8)等于多少
log2(16分之一)加log4 (8)等于多少
log2(16分之一)加log4 (8)等于多少
=log2 2的(-4)次方 +log2² 2³
=-4+3/2
=-5/2
利用换底公式:log(a,b)=log(c,b)/log(c,a)
原式=log(2,2^(-4))+log(2,8)/log(2,4)
=-4+3/2
=-5/2
log2(16分之一)加log4 (8)等于多少
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