Phrases Complex Number Previous Year Question Paper and Solution with PDF

Aspire's Library

A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations

Phrases
Previous Year Questions

Phrases
Previous Year Questions
Phrases

Phrases Previous Year Questions (PYQs)

Phrases Complex Number PYQ

Qus : 1 Phrases PYQ

List I		List II
A.	Dog : Rabies :: Mosquito :	I.	Bacteria
B.	Amnesia : Memory :: Paralysis :	II.	Liver
C.	Meningitis : Brain :: Cirrhosis :	III.	Movement
D.	Influenza : Virus :: Typhoid :	IV.	Malaria

1
2
3
4
Go to Discussion

Phrases Previous Year PYQPhrases CUET 2023 PYQ

Solution

Dog causes Rabies, Mosquito causes Malaria → A-IV

Amnesia affects Memory, Paralysis affects Movement → B-III

Meningitis affects Brain, Cirrhosis affects Liver → C-II

Influenza is caused by Virus, Typhoid is caused by Bacteria → D-I

Correct matching: A-IV, B-III, C-II, D-I

Qus : 2 Phrases PYQ

Let $a=\cos \dfrac{2\pi}{7}+i\sin \dfrac{2\pi}{7}$, $\alpha=a+a^2+a^4$ and $\beta=a^3+a^5+a^6$. Then the equation whose roots are $\alpha,\beta$ is

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2023 PYQ

Solution

Here $a^7=1$ and $1+a+a^2+\cdots+a^6=0$. $\alpha+\beta=a+a^2+a^3+a^4+a^5+a^6=-1$ Also, $\alpha\beta=(a+a^2+a^4)(a^3+a^5+a^6)=2$ Required equation: $x^2-(\alpha+\beta)x+\alpha\beta=0$ $\Rightarrow x^2+x+2=0$

Qus : 3 Phrases PYQ

Math List I with List II : $\omega \ne1$ is a cube root of unity.

LIST I	LIST II
A. The value of $\frac{1}{9}(1-\omega)(1-{\omega}^2)(1-{\omega}^4)(1-{\omega}^8)\, $ is	I. 0
B. $\omega{(1+\omega-{\omega}^2)}^7$ ________ is equal to	II. 1
C. The least positive integer n such that ${(1+{\omega}^2)}^n={(1+{\omega}^4)}^n$ is	III. -128
D. $(1+\omega+{\omega}^2)$ is equal to	IV. 3

Choose the correct answer from the options given below:

1
2
3
4
Go to Discussion

Phrases Previous Year PYQ Phrases CUET 2022 PYQ

Solution

Phrases

Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More

Phrases

Online Test Series,
Information About Examination,
Syllabus, Notification
and More.

Click Here to
View More

Feedback

Info.

Information

Aspire's Library

Phrases Previous Year Questions (PYQs)

Phrases Complex Number PYQ

Solution

Solution

Solution

Phrases

Phrases

Game Changer NIMCET Test Series 2026

Info.

Confirm Delete

Edit