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1
GATE EE 2024
MCQ (More than One Correct Answer)
+1
-0

Which of the following complex functions is/are analytic on the complex plane?

A

$f(z) = j\text{Re}(z)$

B

$f(z) = \text{Im}(z)$

C

$f(z) = e^{|z|}$

D

$f(z) = z^2 - z$

2
GATE EE 2024
Numerical
+1
-0

Consider the complex function $f(z) = \cos z + e^{z^2}$. The coefficient of $z^5$ in the Taylor series expansion of $f(z)$ about the origin is ______ (rounded off to 1 decimal place).

Your input ____
3
GATE EE 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
For a complex number $$z,$$
$$\mathop {Lim}\limits_{z \to i} {{{z^2} + 1} \over {{z^3} + 2z - i\left( {{z^2} + 2} \right)}}$$ is
A
$$-2i$$
B
$$-i$$
C
$$i$$
D
$$2i$$
4
GATE EE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
Consider the function $$f\left( z \right) = z + {z^ * }$$ where $$z$$ is a complex variable and $${z^ * }$$ denotes its complex conjugate. Which one of the following is TRUE?
A
$$f(z)$$ is both continuous and analytic
B
$$f(z)$$ is continuous but not analytic
C
$$f(z)$$ is not continuous but is analytic
D
$$f(z)$$ is neither continuous nor analytic
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Questions Asked from Marks 1
GATE EE 2024 (2) GATE EE 2017 Set 1 (1) GATE EE 2016 Set 2 (1) GATE EE 2015 Set 2 (1) GATE EE 2014 Set 3 (1) GATE EE 2014 Set 2 (1) GATE EE 2013 (1) GATE EE 2008 (1)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement