Question # 1

Co sec 30^o = .................

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1/2

√3/2

2

2/√3

1^o=.........................

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180π radian

π radian

π/180 radian

180/π radian

Sec 45^o =..................

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1

√2

1/√2

0

π/6 radians = ....................

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30^o

60^o

45^o

90^o

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-1

1

0

3π/4 radians =....................

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115^o

135^o

150^o

30^o

In a unit circle, cosθ = ___________

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y

x

y/x

None of these

Cto 60^o=.................

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1/2

√3/2

√3

1/√3

Pi radians is equal to:

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150°

160°

180°

240°

1/1+Sinθ+ 1/1- Sinθ

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2 Sec²θ

2 Cos²θ

Sec²θ

Cosθ

20^o = _______________________________

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360'

630'

1200'

360'

Tan 90° = __________

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1

0

Undefined

None of these

In which quadrant 0 lie when Cosθ < 0. tanθ <0?

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I

II

III

IV

The symbol used to denote a second is:

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1°, 1'

1°

1"

1'

Sin (-310^o) = ...................

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Sin310^o

-Sin310^o

Cos310^o

tan310^o

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90°

45°

60°

30°

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