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8 February, 00:47

Which trigonometric function has a range that does not include a zero?

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  1. 8 February, 00:58
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    Neither of these trig functions have ranges that includes zero because they are reciprocals of the of the sine and cosine functions.

    sec (x) = 1/cos (x)

    csc (x) = 1/sin (x)
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