1.

The solution set of the equation (2cosx-1)(3+2cosx)=0" in "0lexle2pi is

Answer»

`{(pi)/(3),(pi)/(2)}`
`{(pi)/(3),(5PI)/(3)}`
`{(pi)/(2),(3PI)/(2)}`
`{(pi)/(2),pi}`

Answer :B


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