Indian Navy Pilot Trigonometric Functions — practice questions

Explore 3 free Trigonometric Functions questions in Indian Navy Pilot 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 1–3 of 3.

sin(2θ) equals:Read the answer and worked solution →In triangle ABC with sides a, b, c opposite to angles A, B, C: sine rule states:Read the answer and worked solution →Match the trig identity to its resultRead the answer and worked solution →

Worked practice questions

sin(2θ) equals:

2 sin θ cos θ
sin²θ - cos²θ
sin θ + cos θ
2 sin θ

Show answer and solution

Correct answer: A. 2 sin θ cos θ

**Double-angle formula:** sin(2θ) = 2 sinθ cosθ. (Derived from sin(θ + θ).)

Open this question →

In triangle ABC with sides a, b, c opposite to angles A, B, C: sine rule states:

a/sinA = b/sinB = c/sinC
a + b + c = 0
sinA = sinB
a²+b² = c²

Show answer and solution

Correct answer: A. a/sinA = b/sinB = c/sinC

**Sine rule:** a/sinA = b/sinB = c/sinC = 2R (where R is circumradius). Useful for solving triangles when you know any side + opposite angle + one more piece.

Open this question →

Match the trig identity to its result

Read exercise and reference answers

Matching pairs

Left
sin²θ + cos²θ
Right
1
Left
1 + tan²θ
Right
sec²θ
Left
1 + cot²θ
Right
cosec²θ
Left
sin(2θ)
Right
2 sinθ cosθ
Left
cos(2θ)
Right
cos²θ − sin²θ

Open this exercise →

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.