engineering mathematics MCQ #5266

The range of y = cosec(x) is

engineering mathematics MCQ #5266

  1. Question 1

    Q1. The range of y = cosec(x) is

    • A) (-∞, -1] ∪ [1, ∞)
    • B) (-∞, ∞)
    • C) [-1, 1]
    • D) (0, ∞)

    Answer: (-∞, -1] ∪ [1, ∞)

    Explanation: cosec(x) = 1 / sin(x). Since sin(x) lies between -1 and 1, cosec(x) lies outside this range.