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

Elaborate the term packaging, Elaborate the term packaging? Even after...

Elaborate the term packaging? Even after the branding and development of product that product desires arise to fulfil all the other aspects of marketing mix. But most physical

International marketing, list out secondary sources of information while pu...

list out secondary sources of information while pursuing market research.

MBA, Will the pricing and product policy of a multinational firm be differe...

Will the pricing and product policy of a multinational firm be different in a developed and an underdeveloped country? Justify your answer.

Explain about product line pricing of product development, Explain about th...

Explain about the Product Line Pricing of Product Development. Product Line Pricing strategy of product development bring concerning an inter dependency among products, that is

What do you signify by communication process, Q. What do you signify by Com...

Q. What do you signify by Communication Process? Communication has been definite as a process in which exchange of ideas and information takes place among different persons. It

Effect on standard of living in aspect of advertising, Q. Effect on Standar...

Q. Effect on Standard of Living in aspect of advertising? Advertising has decrease the cost of distribution, production, promoted competition and thus resulted in price reducti

What are the ways to decrease the customer defection rate, What are the way...

What are the ways to decrease the customer defection rate? To decrease the customer defection rate, a company should: a) Explain and measure the retention rate. b) Classi

Strategic managemet, 1. Explain the six key criteria for strategy selection...

1. Explain the six key criteria for strategy selection by providing appropriateexamples

Explain in brief about relational communications, Explain in brief about Re...

Explain in brief about Relational Communications   Orientation Explanation Information and promotion Communications ar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd