Q11Multiple choice
If f and g are real functions defined by f (x) = x2 + 7 and g (x) = 3x + 5, find each of the following
- (a)f (3) + g (– 5)
- (b)f × g (14)
- (c)f (– 2) + g (– 1)
- (d)f (t) – f (– 2) f (t ) − f (5) (e) , if t ≠ 5 t −5 RELATIONS AND FUNCTIONS 29