1
GATE CSE 2014 Set 1
Numerical
+2
-0
The function $$f(x) =$$ $$x$$ $$sinx$$ satisfies the following equation:
$$f$$"$$\left( x \right) + f\left( x \right) + t\,\cos \,x\,\, = \,\,0$$. The value of $$t$$ is ______ .
Your input ____
2
GATE CSE 2014 Set 3
MCQ (Single Correct Answer)
+2
-0.6
The value of the integral given below is $$$\int_0^\pi {{x^2}\,\cos \,x\,dx} $$$
A
$$ - 2\pi $$
B
$$\pi $$
C
$$-\pi $$
D
$$ 2\pi $$
3
GATE CSE 2014 Set 3
Numerical
+2
-0
Suppose you want to move from 0 to 100 on the number line. In each step, you either move right by a unit distance or you take a shortcut. A shortcut is simply a pre specified pair of integers i, j with i < j. Given a shortcut i, j if you are at position i on the number line, you may directly move to j. suppose T(k) denotes the smallest number of steps needed to move from k to 100. Suppose further that there is at most 1 shortcut involving any number, and in particular from 9 there is a shortcut to 15. Let y and z be such that T(9) = 1+ min(T(y),T(z)). Then the value of the product yz is _______.
Your input ____
4
GATE CSE 2011
MCQ (Single Correct Answer)
+2
-0.6
Given $$i = \sqrt { - 1} ,$$ what will be the evaluation of the definite integral $$\int\limits_0^{\pi /2} {{{\cos x +i \sin x} \over {\cos x - i\,\sin x}}dx?} $$
A
$$0$$
B
$$2$$
C
$$-1$$
D
$$i$$
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