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March 27, 2017

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for the given functions f and g, find the following and state the domain of each.

f(x)=square root x; g(x)=5x-1

a. (f*g)(x)= ?
what is the domain of f*g?

b. (f/g)(x)=?
what is the domain of f/g?

please show work

  • calculus - ,

    domains:
    f: x>=0
    g: all real

    f*g = f(x)*g(x) = (5x-1)√x
    domain: x>=0

    f/g = f(x)/g(x) = √x / (5x-1)
    domain x>0 but x ≠ 1/5
    That is, (0,1/5)U(1/5,oo)

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