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the value of cos((pi)/(2^2))cos((pi)/(2^...

the value of `cos((pi)/(2^2))``cos((pi)/(2^3))``cos((pi)/(2^4))` .....`cos((pi)/(2^(10)))``sin((pi)/(2^(10)))` is (a) `(1)/(1024)` (b) `(1)/(512)` (c) `(1)/(256)` (d) `(1)/(128)`

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