Lemma
MediumIdentities
OpenStax, Precalculus 2e §7.5 Solving Trigonometric Equations · Exercise 99 · Trigonometry · Identities

Solving Trigonometric Equations · Exercise 99

A man is standing 10 meters away from a 6-meter tall building. Someone at the top of the building is looking down at him. At what angle is the person looking at him?

~8 minWritten answer · compare with the solution

OpenStax, Precalculus 2e · §7.5 Solving Trigonometric Equations · Exercise 99

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
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.