# Introduction To Trigonometry MCQ Questions for Class 10 Maths Chapter 8 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 10 Mathematics book Chapter 8 Introduction To Trigonometry with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam, Taking the help of the Class 10 Business Studies Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Introduction To Trigonometry. Each Questions has four options followed by the right answer. Download the Mathematics Quiz Questions with Answers for Class 10 free Pdf and prepare to exam and help students understand the concept very well.

## Q1. If x and y are complementary angles, then

(i) sin x = sin y
(ii) tan x = tan y
(iii) cos x = cos y
(iv) sec x = cosec y

(iv) sec x = cosec y

(i) 0
(ii) 1+2√3
(iii) 1-√3
(iv) 1+√3

(iii) 1-√3

(i) 90°
(ii) 60°
(iii) 30°
(iv) 0°

(iv) 0°

(i) 1
(ii) -2
(iii) 2
(iv) 3

(iii) 2

(i) a
(ii) a ²
(iii) 1
(iv) 1/a

(ii) a ²

(i) -1
(ii) 0
(iii) 1
(iv) 2

(iii) 1

(i) 0
(ii) 1
(iii) 2
(iv) 3

(ii) 1

(i) -1
(ii) 0
(iii) 1
(iv) 2

(iii) 1

(i) 1/2
(ii) 1/6
(iii) 2/3
(iv) 1/3

(ii) 1/6

(i) 5/3
(ii) 4/5
(iii) 3/4
(iv) 3/5

(iii) 3/4

(i) -1
(ii) 0
(iii) 1
(iv) 1/2

(ii) 0

(i) sin²A
(ii) tan²A
(iii) 1-sin²A
(d )sec²A

(i)sin²A

(i) -1
(ii) 0
(iii) 1
(iv) 2

(iii) 1

(i) √3+1/√2
(ii) √3 -1/√2
(iii) √3+1/2√2
(iv) √3 -1/2√2

(iv) √3 -1/2√2

(i) 90°
(ii) 60°
(iii) 30°
(iv) 0°

(iv) 0°

## Q16. Ratios of sides of a right triangle with respect to its acute angles are known as

(i) trigonometric identities
(ii) trigonometry
(iii) trigonometric ratios of the angles
(iv) none of these

(iii) trigonometric ratios of the angles

(i)5/2
(ii)√(5/2)
(iii)√5/2
(iv)2/√5

(iii)√5/2

(i) 24°
(ii) 18°
(iii) 27°
(iv) 36°

(iv) 36°

(i) 1
(ii) 1/2
(iii) 1/√2
(iv) 0

(iv) 0

(i) x²+1/x
(ii) x²+1/2x
(iii) x²-1/2x
(iv) x²-1/x

(ii) x²+1/2x

(i) >1
(ii) < 1
(iii) =1
(iv) 0

(i) >1

(i)b²-a²/b
(ii)b-a/b
(iii)√(b²-a²)/b
(iv)√(b-a)/b

(iii)√(b²-a²)/b

(i) 0
(ii) 1
(iii) 2
(iv) -1

(iii) 2

(i) 7/23
(ii) 11/23
(iii) 13/23
(iv) 17/23

(i) 7/23

## Q25. sin θ/√1-sin² θ

(i) cot θ
(ii) √sin θ
(iii) sin θ/√cos θ
(iv) tan θ

(iv) tan θ

(i) cos β
(ii) cos 2β
(iii) sin α
(iv) sin 2α

(ii) cos 2β

(i) 0
(ii) 1
(iii) 2
(iv) 4

(ii) 1

(i) √3
(ii) 1/√3
(iii) √3/2
(iv) 1

(i) √3

(i) 15°
(ii) 7 (1°/2)
(iii) 22(1°/2)
(iv) 30°

(iii) 22(1°/2)

## Q30. The value of the expression [cosec (75° + θ) – sec (15° – θ) – tan (55° + θ) + cot (35° – θ)] is

(i) -1
(ii) 0
(iii) 1
(iv) 32

(ii) 0

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