CBSE - Trigonometry

1 Trigonometry 

The least value of   is

1) 4
2) 2Ö2
3) 2
4) Ö2

2 Trigonometry 

If then the value of θ is:

(1) 60° 
(2) 30° 
(3) 90° 
(4) 45°

3 Trigonometry 

If ABCD is a cyclic quadrilateral, the value of tanA/2 tanC/2 + tanB/2 tanD/2

1) 0
2) 1
3) -1
4) 2

4 Trigonometry 

If sin²A + sin⁴A = 1, the value of tan²A – tan⁴A is 

1) -1
2) 1
3) 0
4) 2

5 Trigonometry 

If tanθ  = -1 then find the value of  secθ + cosecθ / cosθ - sinθ

1) 0
2) 1
3) -Ö2
4) Ö2

6 Trigonometry 

If sinx + cosecx = 2, then (sin¹⁰x + cosec¹⁰x) is equal to:

(1) 3 
(2) 0
(3) 1 
(4) 2

7 Trigonometry 

If 2y cosθ=xsinθ and 2xsecθ-ycosecθ= 3, the value of x² + 4y² is

(1) 2
(2) 1
(3) 0
(4) 4

8 Trigonometry 

If sinq = 4 /  5 , then value of cos 2q is

1) 8 / 5
2) 3 / 5
3) 7 / 35
4) -7 / 25

9 Trigonometry 

If a cosθ – bsinθ = c, then asinθ + bcosθ = 

10 Trigonometry 

(1 + tanθ + secθ) (θ+ cotθ – cosecθ) is equal to :

(1) 0  
(2) 2 
(3) 1 
(4) –1