Find the interval in which f (x) = 2x3 + 3x2 – 12x + 1 is increasing.
None of these
Given f (x) =2x3 + 3x2 – 12x + 1
Differentiating both sides, we have
Using number line rule:
Hence f’(x) ≥ 0
then f’(0) is equal to
Local minimum at x = 2, then
a minimum at x= 1 is the value of a is
Assuming that be petrol burnt in a motor boat varies as the cube of its velocity, the most economical speed when going against a current of ckm/hr is
Let f (x) be a function such that f’(a) ≠ 0. Then at x = α ; f (x)
The minimum value of
Find the interval in which f (x) = x3 – 3x2 – 9x + 20 is strictly increasing or strictly decreasing.