Trigonometrical Ratios of Standard Angles Test

Result

Trigonometrical Ratios of Standard Angles Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Find the value of tan 1^o tan 2^otan 3^o … tan 89^o.

A
-1

B
0

C
1

D
∞
Question 2
1 / -0

Solve: sec 40^o sin 50^o + cos 40^o cosec 50^o

A
- 2

B
2

C
0

D
1
Question 3
1 / -0

What is the value of sinθ. cosθ[tanθ + cotθ]?

A
0

B
1

C
sin²θ + sinθ cos²θ

D
sin θ
Question 4
1 / -0

Find the value of sin 43^o cos 47^o + cos 43^o sin 47^o.

A
1

B
2

C
3

D
None of these
Question 5
1 / -0

Solve for θ, if 2 tan θ - sec θ - √2 (2 sin θ - 1) = 0, where 0 < θ < 90^o.

A
0 or 30^o

B
30^o or 45^o

C
45^o or 60^o

D
60^o or 90^o
Question 6
1 / -0

Find the value of cos 22.5^o cos 67.5^o – sin 22.5^o sin 67.5^o.

A
1

B
1√2

C
√3/2

D
0
Question 7
1 / -0

If sin (2B - A) = 2 sin (3A - B) = , find the value of 2A - B.

A
1

B
0

C
80^o

D
90^o
Question 8
1 / -0

If sin²θ - 3 cos²θ = 0, find the value of 2 tan²θ - secθ + 3 and acute angle θ.

A
4, 30^o

B
6, 90^o

C
7, 60^o

D
2, 45^o
Question 9
1 / -0

If 3 - 3 cos A - 2 sin² A = 0, then the measure of angle A is

A
0^o or 45^o

B
30^o or 60^o

C
60^o or 45^o

D
0^o or 60^o

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Re-Attempt Weekly Quiz Competition

Trigonometrical Ratios of Standard Angles Test - 2

Result

Trigonometrical Ratios of Standard Angles Test - 2

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Question 1

-1

0

1

∞

Question 2

- 2

2

0

1

Question 3

0

1

sin2θ + sinθ cos2θ

sin θ

Question 4

1

2

3

None of these

Question 5

0 or 30o

30o or 45o

45o or 60o

60o or 90o

Question 6

1

1√2

√3/2

0

Question 7

1

0

80o

90o

Question 8

4, 30o

6, 90o

7, 60o

2, 45o

Question 9

0o or 45o

30o or 60o

60o or 45o

0o or 60o

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sin²θ + sinθ cos²θ

0 or 30^o

30^o or 45^o

45^o or 60^o

60^o or 90^o

80^o

90^o

4, 30^o

6, 90^o

7, 60^o

2, 45^o

0^o or 45^o

30^o or 60^o

60^o or 45^o

0^o or 60^o