CARA 1
misalkan, f(x) = y
maka, fungsi invers
• ganti variabel menjadi variabel awal
CARA 2 : CARA CEPAT
Jika
maka,
a = 3
b = 4
c = 5
d = -2
inversnya,
JAWABAN : C
-----------------------------
Kelas : 10 SMA
Mapel : Matematika
Bab : Fungsi
Kode : 10.2.3
Kata Kunci : Fungsi Invers, Fungsi
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Verified answer
Fungsi Invers dari fungsi tsb adalah
PEMBAHASAN
CARA 1
misalkan, f(x) = y
maka, fungsi invers
• ganti variabel menjadi variabel awal
CARA 2 : CARA CEPAT
Jika![f(x) = \frac {ax+b}{cx+d} f(x) = \frac {ax+b}{cx+d}](https://tex.z-dn.net/?f=%20f%28x%29%20%3D%20%5Cfrac%20%7Bax%2Bb%7D%7Bcx%2Bd%7D%20)
maka,![f^{-1} (x) = \frac {-dx+b}{cx - a} f^{-1} (x) = \frac {-dx+b}{cx - a}](https://tex.z-dn.net/?f=%20f%5E%7B-1%7D%20%28x%29%20%3D%20%5Cfrac%20%7B-dx%2Bb%7D%7Bcx%20-%20a%7D%20)
maka,![f(x) = \frac {3x+4}{5x-2} f(x) = \frac {3x+4}{5x-2}](https://tex.z-dn.net/?f=%20f%28x%29%20%3D%20%5Cfrac%20%7B3x%2B4%7D%7B5x-2%7D%20)
a = 3
b = 4
c = 5
d = -2
inversnya,
JAWABAN : C
-----------------------------
DETIL JAWABAN
Kelas : 10 SMA
Mapel : Matematika
Bab : Fungsi
Kode : 10.2.3
Kata Kunci : Fungsi Invers, Fungsi