2(lg√2)^2 +lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2)^2-lg2+1都是要开根号的·~
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2(lg√2)^2+lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2)^2-lg2+1都是要开根号的·~2(lg√2)^2+lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2
2(lg√2)^2 +lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2)^2-lg2+1都是要开根号的·~
2(lg√2)^2 +lg√2*lg5+(√(lg√2)^2-lg2+1)
(lg√2)^2-lg2+1
都是要开根号的·~
2(lg√2)^2 +lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2)^2-lg2+1都是要开根号的·~
lg√2=(1/2)lg2
lg5=1-lg2
所以原式=2*(1/4)(lg2)^2+(1/2)lg2(1-lg2)+√[(1/4)*(lg2)^2-lg2+1]
=(1/2)(lg2)^2+(1/2)lg2-(1/2)(lg2)^2+(1/2))*√[(lg2)^2-4lg2+4]
=(1/2)lg2+(1/2)√(1-lg2)^2
=(1/2)lg2+(1/2)*(1-lg2)
=(1/2)lg2+(1/2)-(1/2)lg2
=1/2
2 lg2 + lg5 / lg√10
2lg2+lg5/lg√10=?
(lg5)^+lg 2 x lg 50=?
2(lg√2)^2+lg√2*lg5+√(lg)√2^2-lg2+1
(lg²2-lg2*lg5+lg²)+3lg2*lg5
(lg^2)2+lg2*lg5+lg5
lg²2+lg2×lg5+lg5
2(lg√2)^2 + lg√2 * lg5 + √(lg√2)^2-lg2+1 怎么计算?
(√(lg)^2-lg4+1)+|lg5-1|=?
lg √2 +lg10−2(lg √2 )^2−lg√ 2 •lg5.求值
2(log√2)+lg√2*lg5+√(lg√2)-lg2+1
(lg^2)2+lg4*lg5+(lg^2)5
lg²2+lg4×lg5+lg²5 - -
lg²2+lg2×lg5+lg²5
lg²2+lg2×lg5+lg²5=?
2(lg√2)^2 +lg√2*lg5+(√(lg√2)^2-lg2+1)(lg√2)^2-lg2+1都是要开根号的·~
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