Question

Jika a=6 LOG 5 dan b=5 log 4,maka⁴ log 0,24=..

Answer 1

⁶log 5 . ⁵log 4 = ab
⁶log 4 = ab
⁴log 6 = 1/ab

⁴log 0,24
= ⁴log 24/100
= ⁴log 24 - ⁴log 100
= (⁴log 4 + ⁴log 6) - (⁴log 5² + ⁴log 4)
= (1 + 1/ab) - (2(1/b) + 1)
= ((ab + 1)/ab - (2 + b)/b