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Domain fungsi ( D f ​ ) dari agar mempunyai fungsi invers adalah …

Domain fungsi  dari begin mathsize 14px style f open parentheses x close parentheses equals 2 x squared plus 7 x minus 9 end style agar mempunyai fungsi invers adalah …

  1. begin mathsize 14px style left curly bracket x vertical line x less or equal than negative 1 3 over 4 comma blank x blank element of blank bold italic R right curly bracket end style 

  2. begin mathsize 14px style left curly bracket x vertical line x greater than 1 3 over 4 comma x element of bold italic R right curly bracket end style 

  3. begin mathsize 14px style left curly bracket x vertical line x less than 1 3 over 4 comma x element of bold italic R right curly bracket end style 

  4. begin mathsize 14px style left curly bracket x vertical line minus 1 3 over 4 less than x less than 1 3 over 4 comma x element of bold italic R right curly bracket end style 

  5. begin mathsize 14px style left curly bracket x vertical line x not equal to negative 1 3 over 4 comma x element of bold italic R right curly bracket end style 

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F. Khansabyla

Master Teacher

Mahasiswa/Alumni Universitas Gadjah Mada

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Pembahasan

syarat Domain Jadi, tidak ada jawaban yang tepat.

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row straight x equals cell bottom enclose negative straight b plus-or-minus square root of 4 ax plus straight b squared minus 4 ac end root end enclose end cell row blank blank cell space space space space space space space space space space space space space space space space space space space space space space space space space 2 straight a end cell row cell space space straight x end cell equals cell bottom enclose negative 7 plus-or-minus square root of 4 times 2 times straight x plus open parentheses 7 close parentheses squared minus 4 times 2 times open parentheses negative 9 close parentheses end root end enclose end cell row blank blank cell space space space space space space space space space space space space space space space space space space space space space space space space space space space 2 times 2 end cell row cell space space straight x end cell equals cell bottom enclose negative 7 plus-or-minus square root of 8 straight x plus 121 end root end enclose end cell row blank blank cell space space space space space space space space space space space space space space space space space 4 end cell row straight x equals cell fraction numerator negative 7 over denominator 4 end fraction plus-or-minus square root of fraction numerator 8 straight x plus 121 over denominator 16 end fraction end root end cell row blank blank blank end table end style 

syarat

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator 8 x plus 121 over denominator 16 end fraction end cell greater or equal than 0 row cell 8 x plus 121 end cell greater or equal than 0 row cell 8 x end cell greater or equal than cell negative 121 end cell row x greater or equal than cell fraction numerator negative 121 over denominator 8 end fraction end cell end table end style 

Domain 

begin mathsize 14px style x greater or equal than fraction numerator negative 121 over denominator 8 end fraction end style 

Jadi, tidak ada jawaban yang tepat.

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