根号下[(log2^3)^2-4log2^3+4]+log2^(1/3)

根号下[(log2^3)^2-4log2^3+4]+log2^(1/3) 化简根号下[(log2^3)^2-4log2^3+4]+log2^(1/3) 根号下{[log2 （5)]^2-4log2(5)+4}+log2(1/5) 计算 根号下[(log2 5)^2-4log2 5+4]+log2 1/5 (log3^4+log5^2)(log2^9+log2^根号3) 化简 4^log2^根号下3 速度2分钟之内.化简 4^log2^根号下3还有这个也化简了。 log2(4)/log2(3) log2^(4^7*2^5)+log2^6-log2^3 log2(根号下7/48)+log2(12)-1/2log2(42)-1=? log2^根号下2+log9^27+4^(log4^13) 化简log2 1/2+log2 2/3+log2 3/4+.+log2 31/32 计算：（1）log2 (4^3*8^5);(2)log2 3+log2 6-log2 9 计算：log2(log2 32-log2 3/4+log2 6) log2+根号3（2-根号3） log2-根号3(2+根号3) 已知a>1且a^(lgb)=4次根号下2,求log2(ab)的最小值a^(lgb)=2^1/4,两边取以2为底的对数得:log2(a^(lgb))=log2(2^1/4),即lgblog2(a)=1/4,所以lgb=1/4log2(a),而log2(ab)=log2(a)+log2(b)=log2(a)+lgb/lg2,所以log2(ab)=log2(a)+1/4log2(a)lg2, 计算log2.5（6.25）+lg1/100+In根号下e+2[1+log2(3)]2.5是下标,[1+log2(3)]是上标,(3)是上标 比较log2(2/3)与log4(4/3) 注：log2的“2下标的