The interval in which the function f(x)=x^3-12x^2+36x+20 is increasing, is Option 1: (-∞,-2)(6,∞) Option 2: [-∞,-3)(2,∞) Option 3: (-∞,1](3,∞) Option 4: (-∞,2)(6,∞)

The answer is '(-∞,2)(6,∞)'. View full solution:

CUET Mathematics - The interval in which the function f(x)=x^3-12x^2+36x+20 is increasing, is | PYQs + Solutions

CUET Mathematics 2026 29th May Shift 2

Calculus

Easy

applied

$(-\infty,-2)\cup(6,\infty)$

$[-\infty,-3)\cup(2,\infty)$

$(-\infty,1]\cup(3,\infty)$

$(-\infty,2)\cup(6,\infty)$

✅ Correct Option: 4