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1
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
2
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

$$\int {{1 \over {1 - 2\sin x}}dx} $$ is equal to

A
$${1 \over {2\sqrt 3 }}\log \left| {{{\tan {x \over 2} - 2 - \sqrt 3 } \over {\tan {x \over 2} - 2 + \sqrt 3 }}} \right| + c$$
B
$${{\sqrt 3 } \over 2}\log \left| {{{\tan {x \over 2} - 2 - \sqrt 3 } \over {\tan {x \over 2} - 2 + \sqrt 3 }}} \right| + c$$
C
$${1 \over {\sqrt 3 }}\log \left| {{{\tan {x \over 2} - 2 - \sqrt 3 } \over {\tan {x \over 2} - 2 + \sqrt 3 }}} \right| + c$$
D
None of the above
3
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
$$\int {{{8{x^{43}} + 13{x^{38}}} \over {{{({x^{13}} + {x^5} + 1)}^4}}}dx} $$ equals to
A
$${{{x^{39}}} \over {3{{({x^{13}} + {x^5} + 1)}^3}}} + C$$
B
$${{{x^{39}}} \over {{{({x^{13}} + {x^5} + 1)}^3}}} + C$$
C
$${{{x^{39}}} \over {5{{({x^{13}} + {x^5} + 1)}^3}}} + C$$
D
None of these
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