(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2 D.3
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(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2 D.3
(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2
(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2 D.3
(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2(lg2)²+(lg5)²+2lg2×lg5= A.0 B.1 C.2 D.3
答案是1