matematika nomor 3 saja kak

jawab

y = ⁴√(1/9)⁻ˣ⁺¹
y⁴ =(1/9)⁻ˣ⁺¹
y⁴ = (3⁻²)⁻ˣ⁺¹
y⁴ = (3)²ˣ⁻² melalui (x,y) =(a,9)
9⁴ = (3)²ᵃ⁻²
(3²)⁴= (3)²ᵃ⁻²
8 = 2a- 2
2a= 10
a= 5