1
JEE Main 2022 (Online) 27th June Evening Shift
+4
-1

If m and n respectively are the number of local maximum and local minimum points of the function $$f(x) = \int\limits_0^{{x^2}} {{{{t^2} - 5t + 4} \over {2 + {e^t}}}dt}$$, then the ordered pair (m, n) is equal to

A
(3, 2)
B
(2, 3)
C
(2, 2)
D
(3, 4)
2
JEE Main 2022 (Online) 27th June Evening Shift
+4
-1

Let f be a differentiable function in $$\left( {0,{\pi \over 2}} \right)$$. If $$\int\limits_{\cos x}^1 {{t^2}\,f(t)dt = {{\sin }^3}x + \cos x}$$, then $${1 \over {\sqrt 3 }}f'\left( {{1 \over {\sqrt 3 }}} \right)$$ is equal to

A
$$6 - 9\sqrt 2$$
B
$$6 - {9 \over {\sqrt 2 }}$$
C
$${9 \over 2} - 6\sqrt 2$$
D
$${9 \over {\sqrt 2 }} - 6$$
3
JEE Main 2022 (Online) 27th June Evening Shift
+4
-1

The integral $$\int\limits_0^1 {{1 \over {{7^{\left[ {{1 \over x}} \right]}}}}dx}$$, where [ . ] denotes the greatest integer function, is equal to

A
$$1 + 6{\log _e}\left( {{6 \over 7}} \right)$$
B
$$1 - 6{\log _e}\left( {{6 \over 7}} \right)$$
C
$${\log _e}\left( {{7 \over 6}} \right)$$
D
$$1 - 7{\log _e}\left( {{6 \over 7}} \right)$$
4
JEE Main 2022 (Online) 27th June Morning Shift
+4
-1

The value of the integral

$$\int\limits_{ - 2}^2 {{{|{x^3} + x|} \over {({e^{x|x|}} + 1)}}dx}$$ is equal to :

A
5e2
B
3e$$-$$2
C
4
D
6
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