Define fi z-> 2 xZ by Ala)l (2,72t1) if xis even 18,0) if t is odd a) Is f injective 2? b) Is f surjective 2

Q: Can you prove that it is injective by contrapositive? Also, how is f surjective when y exists in R?

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Q: Find all points where the function is discontinuous. 18) B) x = -2, x = 0, x = 2 D) x = 0, x = 2 A)…

A: The given function is discontinuous at        x = - 2, x = 0 and x = 2

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Q: If f(x) = which one of the following is f-¹(x)? a) b) c) x- x-1 2x x d) 2+3 c) = 2 x+2

A: The given function f(x)=xx-1

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