If (\cos \theta=-1), what is the general solution for (\theta)?

Question

Answer and explanation

Correct answer: (\theta=(2n+1)\pi)

( \cos \theta=-1) occurs at odd multiples of ( \pi). In exams distinguish the solutions of ( \cos \theta=1) and ( \cos \theta=-1).

What is the correct answer to this question?

(\theta=(2n+1)\pi)

Why is this the correct answer?

( \cos \theta=-1) occurs at odd multiples of ( \pi). In exams distinguish the solutions of ( \cos \theta=1) and ( \cos \theta=-1).

Which subject and chapter does this question cover?

This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Trigonometric functions and their properties.