OpenStax, Algebra and Trigonometry 2e §7.4 The Other Trigonometric Functions · Review Exercise 96 · Trigonometry · Unit circle
The Other Trigonometric Functions · Review Exercise 96
Use side lengths to evaluate.
cos \left(\frac{\pi}{2}\right) = sin \left(___°\right)
This exercise has fill-in blanks from its source book and no answer key.
OpenStax, Algebra and Trigonometry 2e · §7.4 The Other Trigonometric Functions · Review Exercise 96
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.