计算(lg2)^2+(lg5)^2+2lg2*lg5

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计算(lg2)^2+(lg5)^2+2lg2*lg5
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计算(lg2)^2+(lg5)^2+2lg2*lg5
计算(lg2)^2+(lg5)^2+2lg2*lg5

计算(lg2)^2+(lg5)^2+2lg2*lg5
(lg2)^2+(lg5)^2+2lg2*lg5
=(lg2+lg5)^2
=[lg(2x5)]^2
=(lg10)^2
=1

(lg2)^2+(lg5)^2+2lg2*lg5
=(lg2+lg5)^2
=(lg10)^2
=1^2
=1