alleryStart learning →sec θ is defined as:
- 1/sin θ
- sin θ/cos θ
- 1/tan θ
- 1/cos θ
Show answer and solution
Correct answer: D. 1/cos θ
sec θ = 1/cos θ (cosecant: csc θ = 1/sin θ; cotangent: cot θ = 1/tan θ).
Indian Navy 10+2 B.Tech Cadet Trigonometric Functions — practice questions
Explore 4 free Trigonometric Functions questions in Indian Navy 10+2 B.Tech Cadet Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Trigonometric Functions with Quill →Trigonometric Functions questions and exercises with answers
Showing questions 1–4 of 4.
Worked practice questions
General solution of cos θ = 0:
- θ = π/2 + nπ
- θ = nπ
- θ = π/4 + nπ
- θ = 0 + 2nπ
Show answer and solution
Correct answer: A. θ = π/2 + nπ
cos θ = 0 at θ = π/2 and 3π/2 (i.e., 90° and 270°).
**General:** θ = π/2 + nπ where n ∈ ℤ. (Every π apart.)
In radian measure, $\pi$ radians equals:
- $270^\circ$
- $180^\circ$
- $90^\circ$
- $360^\circ$
Show answer and solution
Correct answer: B. $180^\circ$
A straight angle is π radians = 180°.
How to practise
- Choose a Trigonometric Functions question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
- Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.