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If cos theta = (-1)/(2) and 0 lt theta l...

If `cos theta = (-1)/(2) and 0 lt theta lt 360^(@)`, then solutions are

A

`120^(@), 210^(@)`

B

`theta = 120^(@), 300^(@)`

C

`theta = 60^(@), 240^(@)`

D

`theta = 120^(@), 240^(@)`

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