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How do you find the domain and range for $y = - 2 sec (.5 x)$ $y=-2sec(.5x)$ ?

1 Answer

Jun 23, 2015

Domain and range of y = -2sec(0.5x)

Explanation:

$y = - \frac{2}{cos (\frac{x}{2})}$ $y = -2/(cos (x/2))$

Domain or period: 4pi

Range (-infinity, -2) and (2, +infinity)

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