Definitions Quiz - CBSE Class 11 Mathematics

Free practice quiz: Definitions (CBSE Class 11 Mathematics). 17 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the sine of 30 degrees?

   1. 0.5
   2. 0.866
   3. 1
   4. 0.707
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   Answer: A. 0.5

   The sine of 30 degrees is 0.5. It is a basic trigonometric value.

2. Find the value of sec(0 degrees).

   1. 1
   2. 0
   3. Infinity
   4. 0.5
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   Answer: A. 1

   Secant is the reciprocal of cosine. Cosine of 0 degrees is 1, hence secant is 1.

3. What is the value of tan(60 degrees)?

   1. √3
   2. 1
   3. 1/2
   4. √3/2
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   Answer: A. √3

   The tangent of 60 degrees is √3, derived from sin(60)/cos(60).

4. What is the value of sin(-30 degrees)?

   1. -0.5
   2. 0.5
   3. -1
   4. 1
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   Answer: A. -0.5

   Sin(-θ) = -sin(θ), thus sin(-30) is -0.5.

5. Evaluate sec(-45 degrees).

   1. -√2
   2. √2
   3. -1
   4. 1
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   Answer: B. √2

   Sec(-θ) = Sec(θ) since cosine is even. Sec(45) is √2.

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