Pertanyaan

Jika f − 1 ( x + 3 3 ) = x + 3 2 x + 3 , maka nilai a agar f ( a) =1 adalah …

Jika $f^{- 1} (\frac{3}{x + 3}) = \frac{2 x + 3}{x + 3}$ , maka nilai a agar f(a) =1 adalah …

3
2
1
0
-1

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$J i k a space f left parenthesis a right parenthesis equals b space m a k a space f to the power of negative 1 end exponent left parenthesis b right parenthesis equals a f left parenthesis a right parenthesis equals 1 comma m a k a colon f to the power of negative 1 end exponent left parenthesis 1 right parenthesis equals a S e d a n g k a n colon f to the power of negative 1 end exponent open parentheses fraction numerator 3 over denominator x plus 3 end fraction close parentheses equals fraction numerator 2 x plus 3 over denominator x plus 3 end fraction J a d i comma space d a p a t space d i s i m p u l k a n colon 1 equals fraction numerator 3 over denominator x plus 3 end fraction x plus 3 equals 3 x equals 0 d a n a equals fraction numerator 2 x plus 3 over denominator x plus 3 end fraction a equals fraction numerator 2 open parentheses 0 close parentheses plus 3 over denominator 0 plus 3 end fraction a equals 1$