Trigonometrical Ratios of Standard Angles Test

Result

Trigonometrical Ratios of Standard Angles Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

Find the value of x such that 2sin² 30^o . cos² 45^o + 3cot² 45^o . sec² 60^o - xcosec² 30^o . sec² 45^o + tan² 30^o . sin² 45^o = 1.

A
1

B
1

C
1

D
1

E
1
Question 2
1 / -0

If sin (2A - 7B) = and cos (A + 4B) = , then (A + B) is

A
36^o

B
37^o

C
38^o

D
39^o

E
45^o
Question 3
1 / -0

Find , if 5 sec⁴ - 6 = 7 sec², where 0 < < 90^o.

A
30^o

B
60^o

C
45^o

D
90^o

E
None of these
Question 4
1 / -0

If sin A = cos B, then which of the following relations is true?

A
A + B = 90^o

B
B - A = 90^o

C
2A + B = 90^o

D
A - 2B = 90^o
Question 5
1 / -0

The value of tan10⁰. tan 20⁰ . tan 70⁰ . tan 80⁰ is

A
1

B
0

C
0.5

D
0.25
Question 6
1 / -0

Find the value of - sin² 25^o + cos²65^o - 5 cot² 45^o + tan² 60^o.

A
- 1

B
1

C
0

D
2

E
- 2
Question 7
1 / -0

Evaluate: + – –

A

B

C

D
None of these

E
Question 8
1 / -0

Evaluate

A

B

C

D
Question 9
1 / -0

Find the value of .

A
0

B
1

C
2

D
3
Question 10
1 / -0

If tan x = cot 45^o, find the value of x.

A
45^o

B
30^o

C
55^o

D
60^o
Question 11
1 / -0

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

A
-1

B
0

C
1

D
Question 12
1 / -0

Find the value of .

A

B

C

D
None of these
Question 13
1 / -0

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

A
- 2

B
2

C
0

D
1
Question 14
1 / -0

What is the value of sin. cos[tan+ cot]?

A
0

B
1

C
sin² + sincos²

D
sin
Question 15
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