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If f and g are real fucntions defined by...

If f and g are real fucntions defined by `f(x)=x^(2)+7 and g (x) 3x+5` Then , find each of the following .
`f(3)+g(-5)` (ii) `f((1)/(2)) xxg(14)`
(iii) f(-2)+g(-1) (iv) f(t)-f(-2)
(v) `(f(t)-f(5))/(t-5)if t ne5`

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