September 2018 1 938 Report
Jika 4log3 =a, 3log5=b. maka 4 log 15 sama dengan....

a. 1+a/ab
b. ab/1+a
c. ab/1+b
d. a(1+b)
e. b(1+a)

2. 4 log 39 ada diantara...
a. 3 dan 4
b. 1 dan 2
c. 2 dan 3
d. 4 dan 5
e. 5 dan 6

3. jika 5log3 =a, 2log5 =b, maka 15log40 sama dengan....
a. b+3/b(a+1)
b. b(a+1)/b+3
c. a+1/b+3
d. b+3/a+1
e. 3 ab

mohin bantuannya semua... please
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