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:
        If (√3 + i )^n = (√3- i)^n , n € N , then least value of n is
9 months ago

Answers : (1)

Arun
13847 Points
							
Dear Kavit
 
On dividing by 2^n both the sides
 
(Cos 30+ i sin30)^n = (cos (-30) + i sin(-30))^n
 
cos (30n) + i sin (30 n) = cos (30n) + i sin(-30 n)
Now
Sin (30 n) = - sin (30n)
2 sin (30n) = 0
Sin(30n) = sin 180°
30 n = 180
 Hence
n = 6
 
 
Regards
Arun (askIITians forum Expert)
9 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 1,590 off

COUPON CODE: SELF10


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


Get Extra Rs. 233 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

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