7th of April 2017

sir when to use componendo dividendo property

Anubhav Rajput - ICSE - Class X

Thursday, April 06, 2017 at 20:50:PM


Componendo dividendo is a property that is generally used to simplify ratio and proportion type problems. 

Suppose we have a fractional equation as begin mathsize 16px style straight a over straight b equals straight c over straight d end style. This is clearly a proportion.

The property states that :

begin mathsize 16px style fraction numerator straight a plus straight b over denominator straight a minus straight b end fraction equals fraction numerator straight c plus straight d over denominator straight c minus straight d end fraction end style

It must always be applied on both sides of the equation to get the correct answer. 

Friday, April 07, 2017 at 13:03:PM