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
Hemanth Sai Grade: 11
        

if sinA+sinB= root3(cos B-cos A) them sin3B+sin3A =

7 years ago

Answers : (1)

Askiitians_Expert Yagyadutt
askIITians Faculty
74 Points
										

Hello Hemanth

 

SinA + sinB = root3(cosB) - root3(cosA)

 

sinA + root3.cosA  =  root3cosB - sinB

 

Multiply by 1/2

 

1/2 sinA + root3/2 cosA = root(3)/2 cosB - 1/2 sinB

 

sin ( A + 60) = sin ( 60 - B)

 

so A + 60 = 60 - B

 

or  A = -B

 

So  Sin3B + sin3A = sin3B - sin3B = 0

 

Ans

 

With regards

Yagya

askiitians_expert

7 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete AIPMT/AIIMS Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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