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sakigirl

  • 2 years ago

Find the inverse of..?

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  1. sakigirl
    • 2 years ago
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    |dw:1359613928022:dw|

  2. manishsatywali
    • 2 years ago
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    let y = \[\sqrt{x-4}\]

  3. manishsatywali
    • 2 years ago
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    square both the sides to get y^2 =x-4

  4. jsolon7
    • 2 years ago
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    change the equation to \[x=\sqrt{y-4}\] and solve for y

  5. manishsatywali
    • 2 years ago
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    take -4 on the left side

  6. sakigirl
    • 2 years ago
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    But the -4 is in the rt

  7. manishsatywali
    • 2 years ago
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    u get y^2+4 = x

  8. manishsatywali
    • 2 years ago
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    replace x by y and y by x u will get the inverse

  9. jsolon7
    • 2 years ago
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    what he said

  10. sakigirl
    • 2 years ago
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    Still a bit confused with what you do with the -4

  11. manishsatywali
    • 2 years ago
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    i have added +4 on both sides so that -4 gets cancel on the right hand side

  12. sakigirl
    • 2 years ago
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    So I get 4+x=sqrt y

  13. manishsatywali
    • 2 years ago
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    |dw:1359614352269:dw|....follow this

  14. manishsatywali
    • 2 years ago
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    after this cancel -4 and +4 on right hand side

  15. sakigirl
    • 2 years ago
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    @manishsatywali Thank you :)

  16. manishsatywali
    • 2 years ago
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    alwaz welcum

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