求值lg2/(log50 10) +lg5/(log5 10)

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求值lg2/(log50 10) +lg5/(log5 10)
有助于回答者给出准确的答案

lg2/(log50 10) +lg5/(log5 10)
=lg2/(lg10/lg50)+lg5/(lg10/lg5)
=lg2*lg50+lg5*lg5
=lg2*lg(25*2)+lg5*lg5
=lg2(2lg5+lg2)+lg5*lg5
=(lg5)^2+2lg5lg2+(lg2)^2
=(lg5+lg2)^2
=1

求值lg2/(log50 10) +lg5/(log5 10) (1/log2 10) + (1/log5 10) =lg2 + lg5 高一数学设a=（lg2）²+（lg5）²+lg4lg5+2log5 10+log5 0.25 b=（ (lg5)^2+lg2*lg50 求值求值：lg5²+lg2*lg50+(lg2)² 求值：lg2/log（底数50）10+lg5/log（底数5）10=? 求值:(lg2)^3+3(lg2)^2*lg5+3lg2*(lg5)^2+(lg5)^3 计算：（lg2)2+3lg5+lg5(1+lg2)+lg8+log2（5）log5（4) (lg2)^3+3lg2lg5+(lg5)^3 求值 1：求值（lg5)平方+lg2×lg50 lg5^-10=?已知lg2=0.3 求值lg的平方2+lg2乘lg5+lg5