log2 √7/24+log2 12-log442
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log2√7/24+log212-log442log2√7/24+log212-log442log2√7/24+log212-log442log2√7/24+log212-log442=log2（√7
log2 √7/24+log2 12-log442
log2 √7/24+log2 12-log442
log2 √7/24+log2 12-log442
log2 √7/24+log2 12-log4 42
=log2 （√7/24× 12）-log4 42
=log2 √42-log4 42
=1/2lg42/lg2-lg42/lg4
=1/2lg42/lg2-1/2lg42/lg2
=0
log2 √7/24+log2 12-log4 42
=log2 （√7/24× 12）-log4 42
=log2 √42-log4 42
=1/2lg42/lg2-lg42/lg4
=1/2lg42/lg2-1/2lg42/lg2
=0
log2 √7/24+log2 12-log442
log2[√(7/48)]+log2(12)-log2(√42)
化简算式log2^√7/48+log2^12-1/2log2^42+1/2^log2^3
log2底√1/48+log2底12-1/2log2底24等于?
log2（√1/48）+log2 12-1/2log2 （24）-1/3
求值：log2√(7/48)+log2(12)-1/2log2(42)-1 这道题我算来算去算不对
计算log2 √(48/7)-log2 12+(1/2)log2 42-1
log2 SQR(7/48)+log2 12 -1/2log2 42
log2 SQR(7/48)+log2 12 -1/2log2 48
Log2√（7/48） +log2 12 -（1/2）log2 42要详细点的额
log2(log2
1/2log2(7/48)+log2 12-1/2log2 42log2 的2 在g的右下脚
log2(根号下7/48)+log2(12)-1/2log2(42)-1=?
log2根号7/48+log2^12-1/2log2^42-1=
求化简log2根号下48分之7+log2 12-log2 42
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