Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Differential Calculus Applications of Derivatives
Find the interval in which the function f(x) = 2x3 - 24x + 107 is strictly decreasing.
1
\(\left ( -\infty ,-2 \right )\)
2
\(\left (2,\infty \right )\)
3
[-2, 2)
4
(-2, 2)