1
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
For every twice differentiable function $$f:R \to [ - 2,2]$$ with $${(f(0))^2} + {(f'(0))^2} = 85$$, which of the following statement(s) is(are) TRUE?
A
There exist r, s $$ \in $$ R, where r < s, such that f is one-one on the open interval (r, s)
B
There exists x0 $$ \in $$ ($$-$$4, 0) such that |f'(x0)| $$ \le $$ 1
C
$$\mathop {\lim }\limits_{x \to \infty } f(x) = 1$$
D
There exists $$\alpha $$$$ \in $$($$-$$4, 4) such that f($$\alpha $$) + f"($$\alpha $$) = 0 and f'($$\alpha $$) $$ \ne $$ 0
2
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Let f : R $$ \to $$ R and g : R $$ \to $$ R be two non-constant differentiable functions. If f'(x) = (e(f(x) $$-$$ g(x))) g'(x) for all x $$ \in $$ R and f(1) = g(2) = 1, then which of the following statement(s) is (are) TRUE?
A
f(2) < 1 $$-$$ loge 2
B
f(2) > 1 $$-$$ loge 2
C
g(1) > 1 $$-$$ loge 2
D
g(1) < 1 $$-$$ loge 2
3
JEE Advanced 2018 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Let f : [0, $$\infty $$) $$ \to $$ R be a continuous function such that

$$f(x) = 1 - 2x + \int_0^x {{e^{x - t}}f(t)dt} $$ for all x $$ \in $$ [0, $$\infty $$). Then, which of the following statement(s) is (are) TRUE?
A
The curve y = f(x) passes through the point (1, 2)
B
The curve y = f(x) passes through the point (2, $$-$$1)
C
The area of the region $$\{ (x,y) \in [0,1] \times R:f(x) \le y \le \sqrt {1 - {x^2}} \} $$ is $${{\pi - 2} \over 4}$$
D
The area of the region $$\{ (x,y) \in [0,1] \times R:f(x) \le y \le \sqrt {1 - {x^2}} \} $$ is $${{\pi - 1} \over 4}$$
4
JEE Advanced 2018 Paper 1 Offline
Numerical
+3
-0
Change Language
The value of $${({({\log _2}9)^2})^{{1 \over {{{\log }_2}({{\log }_2}9)}}}} \times {(\sqrt 7 )^{{1 \over {{{\log }_4}7}}}}$$ is ....................
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