1.

cos{(2pi)/(2^(64)-1)}cos{(2^2pi)/(2^(64)-1)}......cos{(2^(64)pi)/(2^(64)-1)}=

Answer»

`1/(16^(16))`
`1/8^8`
`1/(32^(32))`
`1/(64^(64))`

ANSWER :A


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