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cos ( alpha + beta ) sin ( gamma + delta ) = cos ( alpha - beta ) sin ( gamma + delta ) then prove that cot alpha cot beta cot gamma = cot delta

Asked by H Samarpan(parent) , on 12/5/13


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EXPERT ANSWER

the given equation is: .............(1)

i.e.

now applying componendo and dividendo:

which is the required result.

hope this helps you.

cheers!!

Posted by Ajantaon 16/5/13

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