defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Differential Calculus Applications of Derivatives
The function f(x) = \(\frac{x}{x^2-6 x-16}\), x ∈ ℝ -{-2, 8}
1
decreases in (–2, 8) and increases in (∞, 2) ∪ (8, ∞)
2
decreases in (-∞, -2) ∪ (-2, 8) ∪ (8, ∞)
3
decreases in (-∞, -2) and increases in (8, ∞)
4
increases in (-∞, -2) ∪ (-2, 8) (8, ∞)