Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 6

MEDIUM

RPF Constable CBT 1

IMPORTANT

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If $θ + ϕ = \frac{π}{2}$ and $\sin θ = \frac{1}{2}$ , then the value of $\sin ϕ$ is:

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Important Questions on Basic Trigonometry

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 7

If

θ

is a positive acute angle and

4 \cos^{2} θ - 4 \cos θ + 1 = 0

, then the value of

\tan (θ - 15^{o})

is equal to:

HARD

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 8

The value of

\frac{\sin 25^{o} \cos 65^{o} + \cos 25^{o} \sin 55^{o}}{\tan^{2} 70^{o} - \cos e c^{2} 20^{o}}

is:

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 9

The product

\cos 1^{o} \cos 2^{o} \cos 3^{o} \cos 4^{o} . . . . . . . . . . \cos 100^{o}

is equal to:

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 10

If

\cot θ = \frac{2 x y}{x^{2} - y^{2}},

what is the value of

\cos θ

?

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 11

(\frac{3 π}{5})

radian is equal to:

HARD

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 12

\frac{\sin A + \sin B}{\cos A - \cos B} + \frac{\cos A + \cos B}{\sin A - \sin B}

is equal to:

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 13

\sin^{4} θ + \sin^{2} θ \cdot \cos^{2} θ

is equal to:

MEDIUM

RPF Constable CBT 1

IMPORTANT

Study Guide For RPF/RPSF Constable>Chapter 23 - Basic Trigonometry>Most Important Questions>Q 14

\sin^{2} A co t^{2} A + \cos^{2} A \tan^{2} A

is equal to.