Jika f(x)=5^3x, maka nilai dari invers f(5 akar 5)=....

f(x) = 5^3x
y = 5^3x
3x = ^5log y
x = (^5log y) / 3
f-¹(x) = (^5log x) / 3
f-¹(5√5) = (^5log 5√5) / 3
= (^5log 5^3/2) / 3
= (3/2) / 3
= (3/2) × 1/3
= ½