log2 (2000)=3t-1
loga x^n= n log a x
3t-1=log2 (16*125)
=log2(2^4)+log2(5^3)
=4+3 log 2 5
t= (5+3 log 2 5)/3
=5/3+log 2 5
log 2 5是一个数
log2 (2000)=3t-1
loga x^n= n log a x
3t-1=log2 (16*125)
=log2(2^4)+log2(5^3)
=4+3 log 2 5
t= (5+3 log 2 5)/3
=5/3+log 2 5
log 2 5是一个数