Class 11

28. Complex Numbers question bank (Maths)

Practice 459 free Class 11 Maths - 28. Complex Numbers questions with answers and step-by-step solutions.

Start free Book a demo
All Easy Hard Medium
Q1.

If \( i^2 = -1 \), then the value of \( \sum_{n=1}^{200} i^n \) is:

(A)
50
(B)
50
(C)
0
(D)
100
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Q2.

If \( i = \sqrt{-1} \) and \( n \) is a positive integer, then:
\[
i^n + i^{n+1} + i^{n+2} + i^{n+3} = 
\]

(A)
1
(B)
\( i \)
(C)
\( i^n \)
(D)
0
Show answer & solution
Verified Answer & Solution Locked
Sign in to your free student account to reveal verified answers, instant hints, and detailed explanations.
Sign in to view
Protected Questions

Unlock All 203 Questions in 28. Complex Numbers

Log in or sign up free to access every question with complete solutions, create chapter practice tests, and track your performance.

Sign in to unlock Create free account

Sign up free to access all 203 questions

Unlock every 28. Complex Numbers question, generate papers, and practice at your own pace.

Start free