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Home > PC > Chapter 4 > Lesson 4.3.2 > Problem 4-139

4-139.
  1. Verify the following trigonometric identities. Intermediate steps may involve complex fractions. Homework Help ✎

    1. csc x − sin x = cot x cos x

    2. sec x + tan x =

1. Change all terms to sine and cosine.
2. Get a common denominator.

1. Change all terms to sine and cosine.
2. Get a common denominator.
3. Use the Fundamental Pythagorean Identities.