Lemma
MediumInverse functions
OpenStax, Algebra and Trigonometry 2e §8.3 Inverse Trigonometric Functions · Exercise 53 · Trigonometry · Inverse functions

Inverse Trigonometric Functions · Exercise 53

Suppose a 13-foot ladder is leaning against a building, reaching to the bottom of a second-floor window 12 feet above the ground. What angle, in radians, does the ladder make with the building?

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §8.3 Inverse Trigonometric Functions · Exercise 53

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.