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Welcome to the Mathematical Functions and Expressions MCQs Page

Dive deep into the fascinating world of Mathematical Functions and Expressions with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Mathematical Functions and Expressions, a crucial aspect of MATLAB. In this section, you will encounter a diverse range of MCQs that cover various aspects of Mathematical Functions and Expressions, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MATLAB.

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Check out the MCQs below to embark on an enriching journey through Mathematical Functions and Expressions. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MATLAB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Mathematical Functions and Expressions. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Mathematical Functions and Expressions MCQs | Page 4 of 23

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Q31.
Which command is used to find the argument of a complex number?

a.

atan2()

b.

args()

c.

abs()

d.

cannot be determined

Discuss
Answer: (a).atan2()
Q32.
What is the class of the complex number?

a.

double

b.

symbolic

c.

character

d.

array

Discuss
Answer: (b).symbolic
Q33.
What is the argument of -1-i in MATLAB?

a.

-3*pi/4

b.

pi/4

c.

5*pi/4

d.

-7*pi/4

Discuss
Answer: (a).-3*pi/4
Q34.
What will be the output of the following code? 
atan2(-1,1)

a.

Error

b.

-pi/4

c.

-.7854

d.

0

Discuss
Answer: (c).-.7854
Q35.
The modulus of z, z conjugate and -z are not equal in MATLAB.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q36.
What will be the output of the following code? 
z=2+3i/(i⁹⁹)

a.

z conjugate

b.

-z

c.

-3+(2*i)

d.

-1

Discuss
Answer: (d).-1
Q37.
What is the output of the following code? 
t=-i:.01*i:i; p=exp(2*t);plot(t,p)

a.

a sinusoidal signal

b.

an exponential signal

c.

a discrete sinusoidal

d.

no plot

Discuss
Answer: (d).no plot
Q38.
What is the command used to check the real part of a complex number in MATLAB?

a.

abs()

b.

realc()

c.

real()

d.

cannot be checked

Discuss
Answer: (c).real()
Q39.
Which of the following command can be is used for complex arithmetic?

a.

abs()

b.

atan()

c.

realc()

d.

imagc()

Discuss
Answer: (a).abs()
Q40.
What will be the output of the following code? 
abs(i)

a.

1

b.

-1

c.

Error

d.

i

Discuss
Answer: (a).1
Page 4 of 23

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