(lg5)^2+lg2lg50+2^((1+1/2(log2(5))))=2+2√5?=(1-lg2)^2+lg2lg10+1-lg2+2√5注注lg5=1-lg2

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(lg5)^2+lg2lg50+2^((1+1/2(log2(5))))=2+2√5?=(1-lg2)^2+lg2lg10+1-lg2+2√5注注lg5=1-lg2(lg5)^2+lg2lg50+2^

(lg5)^2+lg2lg50+2^((1+1/2(log2(5))))=2+2√5?=(1-lg2)^2+lg2lg10+1-lg2+2√5注注lg5=1-lg2
(lg5)^2+lg2lg50+2^((1+1/2(log2(5))))=2+2√5?=(1-lg2)^2+lg2lg10+1-lg2+2√5注
注lg5=1-lg2

(lg5)^2+lg2lg50+2^((1+1/2(log2(5))))=2+2√5?=(1-lg2)^2+lg2lg10+1-lg2+2√5注注lg5=1-lg2
原式=(1-lg2)^2+lg2*(2-lg2)+2^(log2(2√5))
=1+(lg2)^2-2lg2+2lg2-(lg2)^2+2√5=1+2√5
(1-lg2)^2+lg2lg10+1-lg2+2√5
=1+(lg2)^2-2lg2+lg2+1-lg2+2√5
=(1-lg2)^2+1+2√5
你的这几个式子哪个都不挨着哪个,不知怎么回事?