1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
If the function.

$$g\left( x \right) = \left\{ {\matrix{ {k\sqrt {x + 1} ,} & {0 \le x \le 3} \cr {m\,x + 2,} & {3 < x \le 5} \cr } } \right.$$

is differentiable, then the value of $$k+m$$ is :
A
$${{10} \over 3}$$
B
$$4$$
C
$$2$$
D
$${{16} \over 5}$$
2
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
$$\mathop {\lim }\limits_{x \to 0} {{\sin \left( {\pi {{\cos }^2}x} \right)} \over {{x^2}}}$$ is equal to :
A
$$ - \pi $$
B
$$ \pi $$
C
$${\pi \over 2}$$
D
1
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
$$\mathop {\lim }\limits_{x \to 0} {{\left( {1 - \cos 2x} \right)\left( {3 + \cos x} \right)} \over {x\tan 4x}}$$ is equal to
A
$$ - {1 \over 4}$$
B
$${1 \over 2}$$
C
1
D
2
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Consider the function, $$f\left( x \right) = \left| {x - 2} \right| + \left| {x - 5} \right|,x \in R$$

Statement - 1 : $$f'\left( 4 \right) = 0$$

Statement - 2 : $$f$$ is continuous in [2, 5], differentiable in (2, 5) and $$f$$(2) = $$f$$(5)
A
Statement - 1 is false, statement - 2 is true
B
Statement - 1 is true, statement - 2 is true; statement - 2 is a correct explanation for statement - 1
C
Statement - 1 is true, statement - 2 is true; statement - 2 is not a correct explanation for statement - 1
D
Statement - 1 is true, statement - 2 is false

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