Prove that Sin (∏/18) .sin (3∏/18). Sin(5∏/18) = 1/8

Question

Prove that Sin (&prod;/18) .sin (3&prod;/18). Sin(5&prod;/18) = 1/8

shivang belwariar · Answer

Sin (&prod;/18) .sin (3&prod;/18). Sin(5&prod;/18) = 1/8 now - sin( 3&prod;/18)1/2[2sin( &prod;/18)sin(5 &prod;/18)] [sin( &prod;/3) + cos(4 &prod;/18)]* sin (&prod;/6)/2 = 1/8 plz click on yes below

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Prove that Sin (∏/18) .sin (3∏/18). Sin(5∏/18) = 1/8

Prove that Sin (∏/18) .sin (3∏/18). Sin(5∏/18) = 1/8

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