34. Jika π(π₯)=4π₯^2 β 1, maka π β1(π₯)=...
a. 1/2 β(π₯ + 1)
b. 1/2 β(π₯ β 1)
c. 1/3 β(π₯ + 1)
d. 1/3 β(π₯ β 1)
e. 1/4 β(π₯ β 1)
Jawaban :
π(π₯)=4π₯^2 β 1
y = 4x^2 - 1
4x^2 = y + 1
x^2 = 1/4 (y + 1)
x = 1/2 β(y + 1)
π β1(y) = 1/2 β(y + 1)
π β1(x) = 1/2 β(x + 1)
Jawaban : A
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