8. INTRODUCTION TO TRIGONOMETRY (Set 1)

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The value of 9 tan² A - 9 sec² A is *

1 point

-9

If 5 tan β = 4 , then the value of *

1 point

⅓

1/9

Given that Secθ = √2 then the value of *

1 point

√2

3√2

2√2

If sin A = √3 /2 the value of 2 cot² A - 1 is *

1 point

- ⅓

- ½

⅓

If tan θ = √3 the value of sec ² θ+cosec² θ is *

1 point

38/9

5 ⅓

40/9

If sin θ + cos θ = √2, then tan θ + cot θ is *

1 point

The value of *

1 point

sinθ cosθ

secθ sin θ

tanθ cotθ

secθ cosecθ

The value of *

1 point

In ∆ABC right angled at B, Sin A=7/25 then the value of Cos C is *

1 point

24 /25

24 /7

7 / 25

7 /24

If x tan 60° cos 60° = sin 60° cot 60° then x = *

1 point

cos 60°

tan 30°

cot 30°

sin 30°

In ∆ABC is right angled at C, then the value of Cos (A+B) is *

1 point

√3 / 2

If secθ + tan θ = p, then tan θ is *

1 point

;

If tan θ + sin θ = m and tan θ - sin θ = n
then m² - n² is equal to *

1 point

4√mn

√mn

√m/n

none of these

If a cot θ + b cosecθ = p and b cotθ+ a cosec θ = q
then p² - q² is *

1 point

a² - b²

a² + b²

b² - a²

b - a

If θ is an acute angle and tanθ + cot θ=2
the value of sin³ θ+cos³ θ is *

1 point

√2

√2 / 2

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