Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Differential Calculus Applications of Derivatives
The intervals for which f(x) = x4 - 2x2 is increasing are:
1
(-∞, 1)
2
(-1, ∞)
3
(-∞, -1) ∪ (0, 1)
4
(-1, 0) ∪ (1, ∞)
5
None of the above