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

Features of marketing information system, Features of Marketing Information...

Features of Marketing Information System: 1. Data are regularly collected. They are contionously updated as environmental conditions change. 2. The data are converted into

Mega marketing, Mega marketing: It is the strategic coordination of the...

Mega marketing: It is the strategic coordination of the economic, psychological, and political and public relations skills to gain the corporations of a number of the parties i

What is effect of decreasing in cost of selling, What is effect of decreasi...

What is effect of decreasing in cost of selling in retaining customers of a firm? Decrease in Cost of Selling: A loyal set of customers maintains the selling cost down an

Algebra , the ordered pair (-1, -1) is a solution of the system -4x + 2y = ...

the ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2. true or false

Effect on media in aspect of advertising, Q. Effect on Media in aspect of a...

Q. Effect on Media in aspect of advertising? All kinds of media viz magazines, T.V, newspaper, earn a lots of revenue from advertisement. A newspaper is sold for one rupee mere

Core concept marketing, what you mean by core concept marketing?and types

what you mean by core concept marketing?and types

How should shoppers Stop develop its demand forecasts?, How should shoppers...

How should shoppers Stop develop its demand forecasts?

State the term- consumer goods, State the term- Consumer goods Goods...

State the term- Consumer goods Goods meant for personal consumption by households or ultimate consumers are known as consumer goods. This includes items such as toiletries,

Value, what is modern and traditional value delivery approach???

what is modern and traditional value delivery approach???

Marketing mix, select a company and explain th marketing mix

select a company and explain th marketing mix

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

User Account

All Pages