MCQ — Attempt all

1. What is the value of sin θ × cosec θ?
   • 0
   • 1
   • sin²θ
   • cosec²θ
2. What is the value of cos θ × sec θ?
   • 1
   • 0
   • cos²θ
   • sec²θ
3. What is the value of tan θ × cot θ?
   • tan²θ
   • cot²θ
   • 1
   • 0
4. Which of the following is a correct basic identity?
   • sin²θ + cos²θ = 1
   • sin²θ − cos²θ = 1
   • sin θ + cos θ = 1
   • tan θ + cot θ = 1
5. 1 + tan²θ is equal to which of the following?
   • cosec²θ
   • sec²θ
   • sin²θ
   • cos²θ
6. 1 + cot²θ is equal to which of the following?
   • sec²θ
   • cosec²θ
   • tan²θ
   • cos²θ
7. What does sin θ mean?
   • sin × θ
   • The ratio of perpendicular and hypotenuse with respect to the angle θ
   • The ratio of base and hypotenuse with respect to the angle θ
   • The sum of perpendicular and base with respect to the angle θ
8. What is the meaning of sin²θ?
   • sin(θ²)
   • sin θ × sin θ
   • sin θ + sin θ
   • 2sin θ
9. Why do trigonometrical ratios have no unit?
   • Because they are sums of angles
   • Because they are ratios of two lengths
   • Because they are always zero
   • Because they are measured only in degrees
10. For a fixed angle, what does a trigonometrical ratio mainly depend on?
    • The colour of the triangle
    • Whether the triangle is large or small
    • Only the value of that angle
    • The position of the triangle