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
Grade: 8

                        

Cos alpha plus cos Nita is equal to zero is equal to sin alpha plus sin Nita then minus cos (alpha plus bita

Cos alpha plus cos Nita is equal to zero is equal to sin alpha plus sin Nita then minus cos (alpha plus bita
 
 
 

3 years ago

Answers : (1)

Pradeep Tangirala
73 Points
							
Let alpha = x....and beta = y...
Now given that...cosx + cosy =0 and sinx +siny =0
So....cosx=-cosy and sinx=-siny...
Now..  -cos(x+y)= -[cosx.cosy - sinx.siny]
             Now...on solving you will get
cos*2x - sin*2x= cos2x 
             Or
Cos*2y -sin*2y = cos2y...... 
3 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

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


Course Features

  • 731 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
 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details