Mark the correct alternative in each of the following:

Let f(x) = x2 and g(x) = 2x. Then the solution set of the equation fog(x) = gof (x) is


Given that f(x) = x2 and g(x) = 2x.


Also, fog(x) = gof (x)


f(2x)=g(x2)



2x = x2


x2 – 2x=0


x(x-2)=0


x = 0 or x = 2

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