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In each of the follwing, find:

a. (f+g)(x)



b. (f-g)(x)

c. (f *g )(x)

d.(f/g) (x)

1. f(x) = 3x + 4; g(x) = 2x - 1

2. f(x) = x-1/ x2, g(x) = 1/x