badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
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: 12

                        

If |z|=2 the -1+5z lie on 1)parabola. 2)hyperbola. 3)circle

4 years ago

Answers : (1)

Vikas TU
13783 Points
							
put z = x+ iy wwe get,
x^2 + y^2 = 4...........................(1)
The coordinate -1 + 5z becomes,
(5x – 1, 5y)
put it in eqn. (1) we get,
(5x – 1)^2 + (5y)^2 = 4
25x^2 + 1 – 10x + 25y^2 = 4
25(x^2 + y^2)  – 10x – 3 = 0
x^2 + y^2 -2x/5 – 3/25 = 0
Hence the point lies on circle.
4 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

  • 101 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