Pertanyaan

D ik e t ah u i f u n g s i f ( x ) = 3 − x 2 x + 1 , x  = 3. J ika f − 1 ( x ) m er u p akan in v ers d a r i f ( x ) , maka ni l ai f − 1 ( − 3 ) a d a l ah ...

$D ik e t ah u i f u n g s i f (x) = \frac{2 x + 1}{3 - x}, x \neq = 3. J ika f^{- 1} (x) m er u p akan in v ers d a r i f (x), maka ni l ai f^{- 1} (- 3) a d a l ah ...$

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Habis dalam

Klaim

D. Kamilia

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Pembahasan

$f u n g s i space f left parenthesis x right parenthesis equals fraction numerator 2 x plus 1 over denominator 3 minus x end fraction comma x not equal to 3. J i k a space f left parenthesis x right parenthesis equals fraction numerator a x plus b over denominator c x plus d end fraction comma space m a k a space f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator negative d x plus b over denominator c x minus a end fraction f left parenthesis x right parenthesis equals fraction numerator 2 x plus 1 over denominator negative x plus 3 end fraction f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator negative 3 x plus 1 over denominator negative x minus 2 end fraction f to the power of negative 1 end exponent left parenthesis x right parenthesis equals fraction numerator 3 x minus 1 over denominator x plus 2 end fraction f to the power of negative 1 end exponent left parenthesis negative 3 right parenthesis equals fraction numerator 3 left parenthesis negative 3 right parenthesis minus 1 over denominator left parenthesis negative 3 right parenthesis plus 2 end fraction equals 10$