lg20+log100(25)=_______ The solution of equation 2log3 (x) = 1 / 4 is________ log5(2)+2/3lg8+lg5lg20+(lg2)²=_________
First question: LOG100 (25) = log (10 ^ 2) (5 ^ 2) = (2 / 2) * log10 (5) = lg5, so the original formula = LG20 + lg5 = LG (20 * 5) = LG100 = 2 second question: then log3 (x) = 1 / 8, so x = 3 ^ (1 / 8) third question: 2 / 3lg8 = 2 / 3 * LG (2 ^ 3) = 2 / 3 * 3lg2 = 2lg2lg5lg20 + (LG2) & sup2; = lg5 * (LG4 + lg5) + (LG2)
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