MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: Upto college level
        

the cojugate of complex number 3+2j is?


1)3-2j


2)2+3j


3)2-3j


4)3+4j

8 years ago

Answers : (4)

Neer Varshney
76 Points
							

3-2i

8 years ago
vikas askiitian expert
509 Points
							

z = 3 + 2i

conjugate of z = 1/z

conjugate z = 1/3+2i

multiplying & dividing by 3-2i

                 = (3-2i/9-4i2)

i2 = -1 so

 conjugate = 3-2i/13

               =3/13 - 2i/13

this is the required ans

approve if u like this ans

8 years ago
vikas askiitian expert
509 Points
							

dear vikrant ,

 i have solved for mulltiplicative inverse , that is multiplicative inverse nor conjugate ...

z = x + iy then conjugate is

conjugate = x - iy

real part remains same but sign of  imajinary part is reversed...

8 years ago
Sudheesh Singanamalla
114 Points
							

Dear Vikrant ,

to find the conjugate of a complex number a + ib all we need to do is to change the '+' symbol to '-' and if the given complex number is a-ib , we change the '-' to a '+'.

So following that rule

given complex number z = 3 + 2j

so the conjugate of this number is

3 - 2j

option (1) is your answer

 

Please approve

8 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 53 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details