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

Describe the term positioning of a firm or service, Courts opened its first...

Courts opened its first retail outlet in Mauritius in 1985, on the outskirts of Port Louis. It subsequently opened outlets in all the towns and big villages. However inspite of its

Positioning strategies, Positioning strategies: 1. Attribute pos...

Positioning strategies: 1. Attribute positioning: a company positions itself on an attribute, such as the size or the number of years in existence. Disneyland can adver

Market efficiency, Market Ef ficiency Market efficient is a mar...

Market Ef ficiency Market efficient is a market in which the prices of the assets or privacies fully reflect all available information. When new information comes wh

Define market segmentation and explain its importance, Question 1 (a) ...

Question 1 (a) Describing a situation, suggest how marketing communications might assist: - perceptual selection - perceptual organization (b) Describe the high- and

How should marketing deliver value, How should marketing deliver value? ...

How should marketing deliver value? It is the nature of marketing. Marketer has to track customer requirements and deliver the product as per their needs. The company should sa

Cost advantage of penetration pricing strategy, How is penetration pricing ...

How is penetration pricing strategy give cost advantage over innovating firm? In the case to outlook penetration pricing strategy is more commercial than financial. It is more

Market segmentation, Market Segmentation Market Segmentation: "Divid...

Market Segmentation Market Segmentation: "Dividing a market into separate groups with different needs, characteristics, or behaviour who may require separate products or mar

The Fabrication and Baking Industries Ltd, Detail the full impact on the to...

Detail the full impact on the total business of The FBI due to the losses in the process in Inspection and Final Test.

Determine the efficiency of utility model, Use Newhouse (1970) nonprofit ho...

Use Newhouse (1970) nonprofit hospital's utility model to maximize U(Q, q) where Q=Quantity and q=quality with zero-profit constrain. You may assume there is an inverse demand P(Q)

How marketing techniques ensured a competitive advantage, The Intercontinen...

The Intercontinental Hotels Group (IHG) has over 4,000 hotels worldwide. IHG owns Holiday Inn (a medium-price hotel chain), Holiday Inn Express (a budget chain), Candlewood Suites

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages