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GATE | GATE-CS-2014-(Set-1) | Question 16
• Last Updated : 13 Nov, 2017

(A) I only
(B) II only
(C) Both I and II
(D) Neither I nor II

Explanation: In the given question, ranges from to .
When =, the value of the function is 0, since Rows 1 and 2 are the same.
When =, the value of the function is 0, since Rows 1 and 3 are the same.
Therefore,
The given function is continuous and differentiable in the given range since it is a trigonometric function.
Then According to the Mean Value Theorem,
There exists a value of such that . So the first statement is true.
Also there may also exist a value , such that . This is because the function is not a constant function, i.e. all values in the range are not equal to .
So the second statement is also true.
Therefore the correct option is C.

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