Explain componendo and dividendo....
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Componendo-Dividendo. :-
if a:b::c:d then (a+b):(a-b)::(c+d):(c-d)
explanation :-
a/b=c/d == (a+b)/(a-b)=(c+d)/(c-d)
if a:b::c:d then (a+b):(a-b)::(c+d):(c-d)
explanation :-
a/b=c/d == (a+b)/(a-b)=(c+d)/(c-d)
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