What is the concept of componendo and divendo?

Asked by  | 23rd Feb, 2012, 03:05: PM

Expert Answer:

If a:b::c:d (i,e the ratio that a bears to b is the same as the ratio that c bears to d),then (a+b):(a-b)::(c+d)(c-d). (the ratio of a+b to a-b is same as the ratio that c+d bears to c-d)
Writing in algebraic form: If  
 
This property is frequently used in simplification.

Answered by  | 23rd Feb, 2012, 03:42: PM

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