Question

Cosec(-750°) find the value of this trigonometry

Answer 1

cosec**(-750°) = 2**

Explanation:

cosec(-750°) = -cosec750° as [cosec(-θ) = -cosec θ]

As, (750°= 4x180° + 30°)

• cosec750° = - cosec(4π+30°)

-(-cosec30°) = cosec30° = 2