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The solution set of x in (-pi,pi) for th...

The solution set of `x in (-pi,pi)` for the inequality `sin2x+1lt=cosx+2sinx` is: `x in [0,pi/6]` (b) `x in [pi/6,(5pi)/6]uu{0}` `x in [-pi/6,(6pi)/6]` (d) None of these

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