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Math Help - Functions

  1. #1
    Junior Member
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    Functions

    Use f(x)= x^2+1, g(x)=2x+3. Find f(g(1)).
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  2. #2
    Math Engineering Student
    Krizalid's Avatar
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    g(1)=5, hence f(5) is...

    Or (f\circ g)(x)=(2x+3)^2+1, then put x=1.
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