1.

If 0lexle 2pi and |cosx|le sin x, then

Answer»

the set of all values of x is `[(pi)/4, (3pi)/4]`
the NUMBER of solutions that are integral multiple of `(pi)/4` is four
the SUM of the LARGEST and the SMALLEST solution is `pi`
the set of all values of `x` is `x in [(pi)/4, (pi)/2)uu((pi)/2, (3pi)/4]`

ANSWER :A::C


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