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If f and g are two real valued functions defined as f(x) =2x +1 and `g (x) =x^(2) +1` then find
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If f and g are two real valued functions defined as f(x) =2x +1 and `g (x) =x^(2) +1` then find (i) f+g (ii) f-g (iii) fg (iv) `(f)/(g)`