MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
divya vikash Grade: 11
        IF atanA+btanB=(a+b)tan((A+B)/2), a not equal to 0.        then prove that:acosB=bcosA.
6 years ago

Answers : (1)

mycroft holmes
266 Points
										


 


Hence, the equation can be written as 


 


After cross multiplying and simplifying, we get 


 


or 


 


If sin(A-B) \= 0, then a cos B = b cos A


 


 


 

6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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