What is componendo and dividendo method? Plz explain.
Componendo and dividendo is a method of simplification in Mathematics.
According to it,
This proof is invalid for a=b and c=d because if such that a = b and c = d
then by application of componendo and dividendo, we get -
[as a=b and c=d]
Since division by zero is not defined. So, this proof is invalid for a = b and c = d