1
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
In the following scheme, if the spectrum M(f) of m(t) is as shown, then the spectrum Y(f) of y(t) will be: GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English 1 GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English 2
A
GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English Option 1
B
GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English Option 2
C
GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English Option 3
D
GATE ECE 2007 Signals and Systems - Miscellaneous Question 4 English Option 4
2
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
As x is increased from $$ - \infty \,\,to\,\infty $$, the function $$f(x) = {{{e^x}} \over {1 + {e^x}}}$$
A
monotonically increases
B
monotonically decreases
C
increases to a maximum value and then decreases
D
decreases to a minimum value and then increases
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The derivative of the symmetric function drawn in Fig .1 will look like GATE ECE 2005 Signals and Systems - Miscellaneous Question 13 English
A
GATE ECE 2005 Signals and Systems - Miscellaneous Question 13 English Option 1
B
GATE ECE 2005 Signals and Systems - Miscellaneous Question 13 English Option 2
C
GATE ECE 2005 Signals and Systems - Miscellaneous Question 13 English Option 3
D
GATE ECE 2005 Signals and Systems - Miscellaneous Question 13 English Option 4
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The value of the integral $$\,I = {1 \over {\sqrt {2\,\,\pi } }}\int\limits_0^\infty {\exp \left( { - {{{x^2}} \over 8}} \right)dx} $$ is
A
1
B
$$\pi $$
C
2
D
2$$\pi $$
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