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hba

  • 2 years ago

The point (3,2) lies on the graph of the inverse of f(x)=2x^3+x+A.The Value of A is :

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  1. hba
    • 2 years ago
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    @hartnn

  2. hartnn
    • 2 years ago
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    then (2,3) will lie on that graph

  3. hba
    • 2 years ago
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    f(x)=0

  4. hba
    • 2 years ago
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    So -18 is the answer ? @hartnn

  5. hartnn
    • 2 years ago
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    3=18+A

  6. hba
    • 2 years ago
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    ^ please Explain ? @hartnn

  7. hartnn
    • 2 years ago
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    put 2,3 in that equation

  8. hba
    • 2 years ago
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    f(x)=2(2)^3*2+A

  9. hba
    • 2 years ago
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    f(x)=18+A

  10. hba
    • 2 years ago
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    What next ? @hartnn

  11. hartnn
    • 2 years ago
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    3= 18+A

  12. hartnn
    • 2 years ago
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    f(x) =3 when x = 2

  13. hba
    • 2 years ago
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    So how come f(x)=3 ?

  14. hba
    • 2 years ago
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    @hartnn

  15. hartnn
    • 2 years ago
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    to put point (2,3) means f(x) =3 when x = 2

  16. hba
    • 2 years ago
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    Thanks Alot.

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