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: 12th pass

                        

In a triangleABC 1/b+c +1/c+a =3/a+b+c then Find angle c?

2 years ago

Answers : (1)

Valli Sundari
26 Points
							
given 1/b+c  + 1/c+a  =  3/a+b+c
 
so on simplification c+a+b+c/ab+ac+bc+c  =  3    is obtained  
 
on further simplification equation ab = b2 – c2 + a2     is obtained
 
as we know  cos C =  b2 - c2 +a2 / 2ab
 
so the result obtained in the previous case we solve the equations to obtain the value of cosC as ½  so hence the angle c is sixty degrees
 
2 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

  • 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

Post Question

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