# 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 cos^{2} – cos^{2} 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 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 – a^{2})

B. (1 – a^{2})/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**