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12 December, 15:15

If f (x) = sqrt{x+3}what is the equation for f^-1 (x)

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  1. 12 December, 15:40
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    Hello,

    y=√ (x+3)

    exchange x and y = = > x=√ (y+3)

    Solve for y: = = >x²=y+3==>y=x²-3=f^ (-1) (x)
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