Short Quiz

Question 1 of 5

NCERT Exemplar

If \(\cos 9 \alpha=\sin \alpha\) and \(9 \alpha<90^{\circ}\), then the value of \(\tan 5 \alpha\) is

A \(\frac{1}{\sqrt{3}}\) B \(\sqrt{3}\) C 1 D 0

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Question 2 of 5

CBSE Board Exam 2026

The value of \(\left(\tan ^2 \mathrm{~A}-\frac{1}{\cos ^2 \mathrm{~A}}\right)\) is :

A more than 1 B 1 C 0 D \(\quad-1\)

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Question 3 of 5

NCERT Exemplar

The value of \(\frac{\tan 30^{\circ}}{\cot 60^{\circ}}\) is

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

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Question 4 of 5

NCERT Exemplar

The value of \(\left(\tan 1^{\circ} \tan 2^{\circ} \tan 3^{\circ} \ldots \tan 89^{\circ}\right)\) is

A 0 B 1 C 2 D 3

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Question 5 of 5

NCERT Exemplar

\(\sin \left(45^{\circ}+\theta\right)-\cos \left(45^{\circ}-\theta\right)\) is equal to

A \(2 \cos \theta\) B 0 C \(2 \sin \theta\) D 1

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Class 6