(log5根号2乘以log7 9)除(log5 3分之1乘log7 3倍的根号4)+log2(根号(3+根号5)—根(3
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(log5根号2乘以log7 9)除(log5 3分之1乘log7 3倍的根号4)+log2(根号(3+根号5)—根(3-根号5))
log7 3倍的根号4, 这个应该是4的开立方
原式=log(5,2)log(7,3)/[-log(5,3)log(7,4)/3]+log(2,[根号(3+根号5)—根(3-根号5)])
=-3log(3,2)log(4,3)+log(2,[根号(3+根号5)—根(3-根号5)]^2)/2
=-3log(3,2)/log(3,4)+log(2,{(3+根号5)+(3-根号5)-2根号[(3+根号5)(3-根号5)]})/2
=-3log(4,2)+log(2,2)/2
=-3/2+1/2
=-1
原式=log(5,2)log(7,3)/[-log(5,3)log(7,4)/3]+log(2,[根号(3+根号5)—根(3-根号5)])
=-3log(3,2)log(4,3)+log(2,[根号(3+根号5)—根(3-根号5)]^2)/2
=-3log(3,2)/log(3,4)+log(2,{(3+根号5)+(3-根号5)-2根号[(3+根号5)(3-根号5)]})/2
=-3log(4,2)+log(2,2)/2
=-3/2+1/2
=-1
(log5根号2底乘以log根号7底3 )/log根号5底3分之1乘以log7底4的立方根
数学(log5 √2*log7 9)/(log5 1/3 *log7 3√4)+log2( √(3+√5)- log√(
(log5根号2*log49 81)/(log25 1/3*log7 4开3次方)=?
(log5根号2*log49^81)/(log25^(1/3)*log7^立方根4)
(log3^4+log5^2)(log2^9+log2^根号3)
求下列函数的定义域 y=log5(1-x) y=1/log2x y=log7乘以1/1-3x y=根号下log3x
log2^5*log3^2倍根号2*log5^9=
我是这样做的log2(3)*log3(5)*log5(49)*log7(64)=log2(3)*log3(5)*2log
log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?
log2(3)+log3(4)+log4(5)+log5(6)+log6(7)+log7(8)
log5*lg8000+(lg2^根号3)^2化简
log2^25*log3^2倍根号2*log5^9=