Range of cosec?
- y ≥ 0
- y ≤ 1
- y ≤ -1 or y ≥ 1
- -1 ≤ y ≤ 1
Explanation
The cosecant function (cosec θ = 1/sin θ) is undefined for sin θ = 0,
And its values are always greater than or equal to 1 or less than or equal to -1.
Hence, the range is y ≤ -1 or y ≥ 1.
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