MediumUnit circle

OpenStax, Algebra and Trigonometry 2e §7.4 The Other Trigonometric Functions · Review Exercise 121 · Trigonometry · Unit circle

The Other Trigonometric Functions · Review Exercise 121

Use reference angles to evaluate the given expression.

If $sec (t) = - 2.5,$ what is the $sec (- t) ?$

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OpenStax, Algebra and Trigonometry 2e · §7.4 The Other Trigonometric Functions · Review Exercise 121

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