Properties of triangle, math, Marketing Management

Assignment Help:

properties of triangles.

in the following problem,
In a triangle ABC,if r1 is the exradius of the excircle opposite to A,r2 is the exradius of the excircle opposite to B and r3is the exradius of the excircle opposite to C....
prove that (ar1+br2+cr3)/abc=(1/r)-(1/2R)
where r is the inradius and R is the circum radius.
i tried using these formulae:
r1=(area of triangle)/(s-a)
r1=stanA/2
but i cudnt solve it.how should i start?

Related Discussions:- Properties of triangle, math

Evaluation and control in the marketing communication plan, Question 1: ...

Question 1: (a) Illustrate how personal selling and direct marketing can be used to enhance the relationship with customers. (b) Critically evaluate the use of controversi

Routinisation reasons of distribution channels, How is routinisation the re...

How is routinisation the reasons of distribution channels in economics system? Routinisation: Marketing agencies hang together into channel arrangements to give for the r

Shift in orientation from old concept to modern concept, A shift in orienta...

A shift in orientation (from old concept of new or modern concept): in short, the marketing concept essentially represents a shift in orientation: 1. From production ori

What is possession utility in marketing, What is Possession Utility in mark...

What is Possession Utility in marketing? Possession Utility: This utility permits a buyer to use the product as he desires. This is the value that a buyer acquires from

Frederick herzberg''s dual factor, Explain the relationship between Frederi...

Explain the relationship between Frederick Herzberg's dual (two) factor motivation theory and job enrichment. Hygiene factors contain pay, status, working conditions, rules and

Write short notes on pull sales promotion strategy, Write short notes on pu...

Write short notes on pull sales promotion strategy. A pullstrategy tries to get consumers to “ pull ” the product through the manufacturer from the marketing channel. The compa

Explain about the product assortment in briefly, Explain about the product ...

Explain about the product assortment in briefly. “A product mix (also termed as product assortment) is the set of all products and items which a particular sellers offers for s

Marketing principles and practices, WV8 is a large not for profit (NFP) pub...

WV8 is a large not for profit (NFP) public sector organisation responsible for organising the operation of publicly financed schools within its region. WV8 receives its income sole

Write a report on swot analyses for the company, According to the MCCI Busi...

According to the MCCI Business Confidence Indicator (September 2010), the morale of business leaders is morose with a drop to 96.3 of the confidence level index(March 2010=100)

What you understand by boundary-spanning roles, Question: Consider you ...

Question: Consider you a front-line manager in a hotel. From this perspective, a) Describe the service encounter. b) discuss methods which you would use in the service e

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages