8. INTRODUCTION TO TRIGONOMETRY (Set 1)

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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

;

Given that Secθ = √2 then the value of *

1 point

3√2

√2

2√2

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

1 point

7 / 25

24 /25

7 /24

24 /7

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

1 point

√2

√2 / 2

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

1 point

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

1 point

sin 30°

tan 30°

cos 60°

cot 30°

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

1 point

5 ⅓

38/9

40/9

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

1 point

- ½

- ⅓

⅓

If 5 tan β = 4 , then the value of *

1 point

⅓

1/9

The value of 9 tan² A - 9 sec² A is *

1 point

-9

The value of *

1 point

sinθ cosθ

secθ sin θ

secθ cosecθ

tanθ cotθ

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

1 point

none of these

4√mn

√mn

√m/n

The value of *

1 point

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

1 point

b² - a²

b - a

a² + b²

a² - b²

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