NO.1 (log3 2 + log9 2) (log4 3 + log8 3)
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/25 00:38:28
NO.1 (log3 2 + log9 2) (log4 3 + log8 3)
NO.2 (lg5)的平方 + (lg50 乘 lg2)
NO.3
[(1 - log6 3)的平方 + (log6 2 乘 log6 18)] 除 log6 4
第一题你做错了,是5/4
NO.2 (lg5)的平方 + (lg50 乘 lg2)
NO.3
[(1 - log6 3)的平方 + (log6 2 乘 log6 18)] 除 log6 4
第一题你做错了,是5/4
1.原式
=(log3(2)+1/2log3(2))*(2log2(3)+3log2(3))
=3/2*5*log2(3)*log3(2)
=15/2
2.因为(lg5)^2+lg2*lg50
=(lg5)^2+lg2*lg(5*10)
=(lg5)^2+lg2*(lg5+lg10)
=(lg5)^2+lg2(lg5+1)
=lg5*(lg2+lg5)+lg2
=lg5*lg10+lg2
=lg5+lg2=lg(2*5)=lg10=1
3.[(1-log6(3))^2 + log6(2) × log6(18)]÷log6(4)
=[log6(2)^2 + log6(2) × (log6(3)+1)]÷2log6(2)
=(log6(2)+log6(3)+1)/2
=(1+1)/2
=1
=(log3(2)+1/2log3(2))*(2log2(3)+3log2(3))
=3/2*5*log2(3)*log3(2)
=15/2
2.因为(lg5)^2+lg2*lg50
=(lg5)^2+lg2*lg(5*10)
=(lg5)^2+lg2*(lg5+lg10)
=(lg5)^2+lg2(lg5+1)
=lg5*(lg2+lg5)+lg2
=lg5*lg10+lg2
=lg5+lg2=lg(2*5)=lg10=1
3.[(1-log6(3))^2 + log6(2) × log6(18)]÷log6(4)
=[log6(2)^2 + log6(2) × (log6(3)+1)]÷2log6(2)
=(log6(2)+log6(3)+1)/2
=(1+1)/2
=1
化简(log4(3)+log8(3))(log3(2)+log9(2))
(log4^3+log8^3)(log3^2+log9^2)
求值(log4(3)+log8(3))×(log3(2)+log9(2))
求值(log3(2)+log9(2))*(log4(3)+log8(3))
(log3 2+log9 2)*(log4 3+log8 3)求值
(log3^2 + log9^4)×(log4^3 + log8^3)
求值:(log4^ 3+log8 ^9)*(log3^ 2+log9 ^16)
(log4(3)+log8(3))(log3(2)+log9(2))-log4(3)×log1/3(四次根号32)
求值.(log3^2+log9^3)*(log4^3+log8^3)+(log3^3^1/2)^2+ln根号下e-lg1
(log3 2)+log9 2)*(log4 3+log8 3)+(log3 3^1/2)^2+ln根号e-lg1
1.log2 3*log3 4*log4 5*log5 2 2.(log4 3+log8 3)8(log3 2+log9
(1)log4 27乘以log25 8乘以log9 5 (2)(log4 3+log8 3)(log3 2+log9 2