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Home > PC > Chapter 4 > Lesson 4.2.4 > Problem 4-113

4-113.
  1. Find all values of θ where θ € [0, 2] (θ is an element of the interval from 0 to 2). Homework Help ✎

    1. csc θ =

    2. sec θ = −square root of 2

    3. tan θ is undefined

    4. cot θ = −1

Rewrite cscθ in terms of sinθ.

Flip the fraction on both sides.

Rationalize the denominator.

Simplify.

The sine function is positive in Quadrants I and II.

Use the same thinking process as in (a).

Use the same thinking process as in (a).