defence exam BSF Head Constable (RO/RM) Mock Test 2023 Mathematics Differential Calculus Applications of Derivatives
The least value of the function f(x) = 2cosx + x in the closed interval \([0,\frac{\pi}{2}]\) is :
1
2
2
\(\frac{\pi}{6}\) + √3
3
\(\frac{\pi}{2}\)
4
The least value does not exist