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

Examine the importance of using image attributes, The Mauritius Tourism Pro...

The Mauritius Tourism Promotion Authority (MTPA) has undertaken advertising in UK to support low season activity using creative ads that carries the headline So Many Reasons? in or

Market specialization, Market specialization: Here the firm concentr...

Market specialization: Here the firm concentrates on serving many needs of a particular customer group. An example would be a firm that sells an assortment to produce only t

High quality costs down and revenue up, 2JN is a large manufacturing organi...

2JN is a large manufacturing organisation which is structured with a number of supervisors each responsible for their own work production unit. Supervisors report to a team of seni

Video game, Should video game companies continue to alter their products to...

Should video game companies continue to alter their products to include other functions, such as Email ?

What is time utility in marketing, What is Time Utility in marketing? ...

What is Time Utility in marketing? Time Utility: Marketers give time utility to their customers by giving their products while the customer wants them. For instance, Aut

Design a performance evaluation report, The purchasing department of Bradle...

The purchasing department of Bradley Inc. is responsible for companywide purchasing. Its total costs are assigned to each division based on the number of purchase orders the purcha

Valuation method, Please perform required valuations in the template provid...

Please perform required valuations in the template provided. What conclusions can you draw from the value range obtained? Could you suggest a change in the template to improv

Explain the various elements of the marketing process, A Convertible Ultrab...

A Convertible Ultrabook is a new type of notebook which functions both as a laptop and tablet mode when required. Ultrabooks are designed to feature reduced bulk without compromisi

Explain aid of a market model , Read the article entitled 'Easter egg price...

Read the article entitled 'Easter egg prices rise by around 5 per cent over last year' and answer questions 1, 2 and 3. Easter egg prices rise by around 5 per cent over last year C

The institutions of puplic policy and business regulation, marketerinvolvme...

marketerinvolvment

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages