Question

求助数学第六题

Answer 1

追答

其实没他们那样复杂，详细步骤图片上，看不清楚问我┏ (^ω^)=☞

Answer 2

a=log(2,3)
b=log(2,5)
c=log(2,30)
=log(2,5)+log(2,2)+log(2,3)
=a+b+1

Answer 3

30=5*6=5*3*2
=2^b*2^a*2
=2^(a+b+1)

Answer 4

2c=2(2a*2b)=2*2(a+b)=2(1+a+b)，则c=1+a+b

Answer 5

Answer 6