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Trigonometric Table Question And Answer Set 1

Trigonometric Table Question and Answer Set 1

Hi students, welcome to Amans Maths Blogs (AMB). On this post, you will get the Trigonometric Table Question and Answer Set 1. It will help you to practice the questions on the topics of height and distance based questions with answers.

Trigonometric Table Question and Answer Set 1: Ques No 1

The value of cos2\left ( 727\frac{1}{2}^\circ \right ) – cos2\left ( 397\frac{1}{2}^\circ \right ) is 

Options:

A. 3/4

B. 1/Root(2)

C. 1/2

D. 1/2Root(2)

Answer: D

Trigonometric Table Question and Answer Set 1: Ques No 2

The value of \sqrt{3}cosec \left ( 20^\circ \right )-sec\left ( 20^\circ \right ) is

Options:

A. -4

B. 1

C. 2

D. 4

Answer: D

Trigonometric Table Question and Answer Set 1: Ques No 3

if a = tan (10 degrees), then the value of tan (70 degrees) is 

Options:

A. 2a/(1 – a2)

B. (1 – a2)/2a

C. 7a

D. 2a

Answer: B

Trigonometric Table Question and Answer Set 1: Ques No 4

The value of cos(2Pi/7) + cos(4Pi/7) + cos(6Pi/7) + cos(7Pi/7) is

Options:

A. 1

B. -1

C. 1/2

D. -3/2

Answer: D

Trigonometric Table Question and Answer Set 1: Ques No 5

If sin (120 – A) = sin (120 – B) and 0 < A, B < Pi, then 

Options:

A. A + B = Pi/3

B. A = B

C. A = B or A + B = Pi/3

D. A + B = 0

Answer: C

Trigonometric Table Question and Answer Set 1: Ques No 6

The value of cos (12 degrees) + cos (84 degrees) + cos (132 degrees) + cos (156 degrees) is

Options:

A. 1/8

B. -1/2

C. 1

D. 1/2

Answer: A

Trigonometric Values Question and Answer Set 1: Ques No 7

If K[sin (18 degrees) + cos (36 degrees)] = 5, then the value of K is

Options:

A. 2Root(5)

B. Root(5)/2

C. 4

D. 5

Answer: A

Trigonometric Table Question and Answer Set 1: Ques No 8

If A and B are two acute angles such that tan A = 7/8 and tan B = 1/15, then the value of A + B is

Options:

A. Pi/2

B. Pi/3

C. Pi/4

D. Pi/6

Answer: C

Trigonometric Values Question and Answer Set 1: Ques No 9

If x = sin (π/18) sin (5π/18) sin (7π/18), then what is the numerical value of x?

Options:

A. 1/2

B. 1/2Root(2)

C. 1/8

D. 1/4

Answer: C

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