CBSE Past Year MCQ Quiz

Question 1 of 3

CBSE Board Exam 2025

\(\frac{\cos \theta}{\sqrt{1-\cos ^2 \theta}}\) is equal to :

A \(\cot \theta\) B \(\sqrt{\cos \theta}\) C \(\frac{\cos \theta}{\sqrt{\sin \theta}}\) D \(\tan \theta\)

Select one option. Answers are shown after the test.

Question 2 of 3

CBSE Board Exam 2026

Given that \(\sin 2 \alpha=\frac{\sqrt{3}}{2}\), the value of \(\sin 3 \alpha\) is :

A \(\frac{3 \sqrt{3}}{4}\) B \(\frac{1}{2}\) C 1 D \(\frac{\sqrt{3}}{4}\)

Select one option. Answers are shown after the test.

Question 3 of 3

CBSE Board Exam 2026

Which of the following statements is false?

A \(\quad \tan 45^{\circ}=\cot 45^{\circ}\) B \(\quad \sin 90^{\circ}=\tan 45^{\circ}\) C \(\quad \sin 30^{\circ}=\cos 30^{\circ}\) D \(\sin 45^{\circ}=\cos 45^{\circ}\)

Select one option. Answers are shown after the test.

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