Trigonometrical Identities Test

Result

Trigonometrical Identities Test - 7

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following values is the same as sin (80° – x)?

A
cos(80° – x)

B
cos(10° – x)

C
cos(10° + x)

D
cos(x + 50°)

E
cos(x – 10°)
Question 2
1 / -0

Find the value of + - x cos.

A
1

B

C
2

D
3
Question 3
1 / -0

If tan(90° – A) =, find the value of sin(90° – A) + cosec(90° – A).

A
1

B

C

D

E
– 1
Question 4
1 / -0

Find the value of .

A
– 4

B
– 1

C
0

D
1

E
2
Question 5
1 / -0

Find the value of .

A
1

B
sin

C
sec

D
sin²

E
cos²
Question 6
1 / -0

Find the value of .

A
1

B
2

C
2 sec²

D
2 cosec²

E
cosec²
Question 7
1 / -0

If cos(90° - A) = , find the value of tan A.

A

B

C

D

E
Question 8
1 / -0

If A and B are acute angles and A + B = 90°, which of the following relations holds true?

A
sinA = sinB

B
cosA = cosB

C
tanA = cotB

D
cotA = secB

E
tanA = cosB
Question 9
1 / -0

Find the value of cos(180° - A).

A
sinA

B
- sinA

C
cosA

D
- cosA

E
secA
Question 10
1 / -0

If angle y is acute, i.e. 0° < y < 90° and sec 55° cos (90° - y) = 1; find the measure of angle y.

A
y = 45°

B
y = 35°

C
y = 65°

D
y = 85°
Question 11
1 / -0

What is the value of - tanA?

A
cosA

B
sinA

C
tanA

D
secA
Question 12
1 / -0

Find the value of .

A
- 1

B
0

C
1

D
cot²

E
sec²
Question 13
1 / -0

If sin3P = cos(P + 14), find the value of sin(P + 11).

A
cos25°

B
0.5

C

D
cos14°

E
Question 14
1 / -0

Find the value of sin(90° – ) . cos(90° – ).

A
0

B
1

C

D

E
tan
Question 15
1 / -0

What is the value of cos(40° + ) - sin(50° - )?

A
- 1

B
0

C

D
1

E
2