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cos(pi/65)cos((2pi)/65)cos((4pi)/65)cos(...

`cos(pi/65)cos((2pi)/65)cos((4pi)/65)cos((8pi)/65)cos((16pi)/65)cos((32pi)/64)=1/64`

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Show that cos(pi/65)cos((2pi)/65)cos((4pi)/65)cos((8pi)/65)cos((16pi)/65)cos((32pi)/65)=1/64

cos(pi/5)cos((2pi)/5)cos((4pi)/5)cos((8pi)/5)=

"cos(pi/15)cos((2pi)/15)cos((4pi)/15)cos((8pi)/15)=k

Show that "cos"(pi)/65"cos"(2pi)/65"cos"(4pi)/65"cos"(8pi)/65"cos"(16pi)/65"cos"(32pi)/65=1/64

Prove that: cos(pi/5)cos((2pi)/5)cos((4pi)/5)cos((8pi)/5)=(-1)/16

The value of cos""pi/65.cos""(2pi)/65.cos""(4pi)/65.cos""(8pi)/65.cos""(16pip)/65.cos""(32pi)/65 is :

cos""(2pi)/(15)cos""(4pi)/(15)cos""(8pi)/(15)cos"(16pi)/(15)=(1)/(16)

cos""(2pi)/(15)cos""(4pi)/(15)cos""(8pi)/(15)cos""(16pi)/(15)=(1)/(16)

Show that 16cos((2pi)/(15))cos((4pi)/(15))cos((8pi)/(15))cos((16pi)/(15))=1

cos""(2pi)/(15)cos""(4pi)/(15)cos""(8pi)/(15)cos""(16pi)/(15)=(1)/(16)