Given that SiNx times cosx is equal to 1 / 8, and Pie / 4 is less than X and Pie / 2, what is cosx SiNx equal to?

(Cosx-Sinx)^2=(cosx)^2+(sinx)^2-4cosx * sinx=1-4*1/8=1/2
Because Pie / 4 is less than Pie / 2, so cosx

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