Question

9 The necessary Condition for a function
f (x) to have a maxima at x= c is
that
(a) f'(c) >0 (b)f '(c)=0
(c)f'(c) <0(d) None of these​

Answer 1

Answer:

(b)

f'(c) = 0

is the correct answer

Step-by-step explanation:

because maxima is obtained at critical points and at critical point f'(x) = 0