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