if cosec 240°=x, then the value of x is
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cosec(180 + 60) = x
We know that cosec(180 + theta) = -cosec theta.
- cosec 60 = x
Hope this helps!
=> x = Cosec240°
=> x = Cosec(180°+60°)
=> x = - Cosec60°
=> x = -2/√3