Trigonometric RatiosHard
Question
If f (x) = 
, x ≠ nπ, then the range of values of f (x) for real values of x is -
, x ≠ nπ, then the range of values of f (x) for real values of x is -Options
A.[-1, 3]
B.(−∞, −1]
C.(3, +∞)
D.[−1, 3)
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