Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Differential Calculus Applications of Derivatives
The function f(x)=cot-1x + x increases in the interval
1
(1, ∞)
2
(-1, ∞)
3
(-∞, ∞)
4
More than one of the above
5
None of the above