fungsi invers a. f(x)=4/x+7 b. f(x)=3x-2/x-3 c, f(x)=x^3+1/x^3-2 d. f(x)=(1-x^3)^1/3-3
Matematika
Lailawibisono
Pertanyaan
fungsi invers
a. f(x)=4/x+7
b. f(x)=3x-2/x-3
c, f(x)=x^3+1/x^3-2
d. f(x)=(1-x^3)^1/3-3
a. f(x)=4/x+7
b. f(x)=3x-2/x-3
c, f(x)=x^3+1/x^3-2
d. f(x)=(1-x^3)^1/3-3
1 Jawaban
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1. Jawaban Erinda120101
a. misal f(x) = y
4/x+7 = y
xy+7y = 4
xy = 4-7y
x = 4-7y/y
Jadi f^-1(x) = 4-7x/x
b. misal f(x) = y
3x-2/x-3 = y
xy-3y = 3x-2
xy-3x = 3y-2
x(y-3) = 3y-2
x = 3y-2/y-3
Jadi f^-1(x) = 3x-2/x-3
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