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If 0lt=xlt=2pia n d|cosx|lt=sinx , then ...

If `0lt=xlt=2pia n d|cosx|lt=sinx ,` then (a) then set of all values of `x` is `[pi/4,(3pi)/4]` (b)the number of solutions that are integral nultiple of `pi/4` is four (C)the number of the largest and the smallest solution is `pi` (D)the set of all values of `x` is `x in [pi/4,pi/2]uu[pi/2,(3pi)/4]`

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