1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The value of $$\mathop {\lim }\limits_{x \to 0} {{{{(1 + x)}^{{1 \over x}}} - e + {1 \over 2}ex} \over {{x^2}}}$$ is

A
$${{11} \over {24}}e$$
B
$$ - {{11} \over {24}}e$$
C
$${e \over {24}}$$
D
None of these
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The locus of the mid-point of the chord if contact of tangents drawn from points lying on the straight line $$4x - 5y = 20$$ to the circle $${x^2} + {y^2} = 9$$ is

A
$$20({x^2} + {y^2}) - 36x + 45y = 0$$
B
$$20({x^2} + {y^2}) + 36x - 45y = 0$$
C
$$36({x^2} + {y^2}) - 20x + 45y = 0$$
D
$$36({x^2} + {y^2}) + 20x - 45y = 0$$
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

Let $$f(x) = \int {{{{x^2}dx} \over {(1 + {x^2})(1 + \sqrt {1 + {x^2}} )}}} $$ and $$f(0) = 0$$, then the value of $$f(1)$$ be

A
$$\log (1 + \sqrt 2 )$$
B
$$\log (1 + \sqrt 2 ) - {\pi \over 4}$$
C
$$\log (1 + \sqrt 2 ) + {\pi \over 2}$$
D
None of these
4
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The mean of five observations is 4 and their variance is 5.2. If three of these observations are 1, 2 and 6, then the other two are

A
2 and 9
B
3 and 8
C
4 and 7
D
5 and 6
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