Question

Hey talented young guys ..!

Dare to solve hmm ?

Then solve this :-

Sin10*sin20*sin40*sin60

Thanks !
I accept ur courage for this !!

Answer 1

Hey there!

Kindly refer the following attachments for a detailed solution and explanation for the following proof.

$\boxed{\bf{\underline{\star \quad HENCE \: \: PROVED \quad \star}}}$

Which is the required proof or the answer to this query.

Hope this helps you and soles your doubts for proving to two given trigonometric identities!!!!!!