Mathematics

Mathematics

Problem

## SECTION 5.1 EXERCISES In Exercises 1-4, evaluate without using a calculator. Use the Pythagorean identities rather than reference triangles. (See Example 1.) 1. Find sin⁡θ\sin \theta and cos⁡θ\cos \theta if tan⁡θ=3/4\tan \theta=3 / 4 and sin⁡θ>0\sin \theta>0.

Browse the problem library