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Kelas 10 MatematikaBab Fungsi Komposisi
^ = pangkat
g(x) = x²
y = x²
x = √y
g^-1 (x) = √x
g^-1 (25) = √25
g^-1 (25) = +- 5
karena x<= 0, maka
g^-1 = -5