📚 Practice Mode

Trigonometric Identities

Learn at your own pace with hints and detailed explanations

1 / 15
Multiple Choice

Which of the following is an identity?

  1. sin^2(x) + cos^2(x) = 1
  2. sin(x) + cos(x) = 1
  3. sin(x) - cos(x) = 1
  4. sin(x) / cos(x) = tan(x)
Change Mode