prove that, 16cos24cos48cos96cos168=1
Kanha221:
question is wrong
no it is true
why are you say that ??
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Left = 16cos24cos48cos96cos168* sin24 / sin24
= 8sin48 * cos48 * cos96 * cos168 / sin24
= 4sin96 * cos96 * cos168 / sin24
= 2sin192 * cos168/ sin24
= sin384 / sin24
= sin24 / sin24
= 1
= 8sin48 * cos48 * cos96 * cos168 / sin24
= 4sin96 * cos96 * cos168 / sin24
= 2sin192 * cos168/ sin24
= sin384 / sin24
= sin24 / sin24
= 1
thank you
in first turm why are you take cos192 ?? it is a cos 168
why ??
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