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Home > CBSE Class 10 > MCQ Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Answer with Keys

# MCQ Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry Answer with Keys Hi students, Welcome to AMBiPi (Amans Maths Blogs). In this article, you will get MCQ Questions for Class 10 Maths Chapter 8 Introduction to Trigonometry with Answer Keys PDF. You can download this PDF and save it in your mobile device or laptop etc.

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 1:

If cos (α + β) = 0, then sin (α – β) can be reduced to

Option A : cos β

Option B : cos 2β

Option C : sin α

Option D : sin 2α

Option B : cos 2β

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 2:

Given that sin α = √3/2 and cos β = 0, then the value of of β − α  is

Option A : 0 degree

Option B : 90 degree

Option C : 60 degree

Option D : 30 degree

Option D : 30 Degree

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 3:

If cos (40° + A) = sin 30°, the value of A is:

Option A : 60 degree

Option B : 20 degree

Option C : 40 degree

Option D : 30 degree

Option B : 20 degree

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 4:

If a triangle ABC is right angled at C , then the value of sec(A + B) is

Option A : 0

Option B : 1

Option C : 2/√3

Option D : Not Defined

Option D : Not Defined

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 5:

If sin x + cosec x = 2, then sin19x + cosec20x =

Option A : 219

Option B : 220

Option C : 2

Option D : 239

Option B : 2

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 6:

If sin θ + cos θ = √cosθ, (θ ≠ 90), then the value of tanθ is

Option A : √2 – 1

Option B : √2 + 1

Option C : √2

Option D : –√2

Option A : √2 – 1

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 7:

If cos 9a = sin a and 9a < 90°, then the value of tan 5a is

Option A : 1/√3

Option B : √3

Option C : 1

Option D : 0

Option C : 1

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 8:

7sin2θ + 3cos2θ = 4 then

Option A : tanθ = 1/√2

Option B : tanθ = 1/2

Option C : tanθ = 1/3

Option D : tanθ = 1/√3

Option D : tanθ = 1/√3

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 9:

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

Option A : 0

Option B : 1

Option C : 2

Option D : -1

Option C : 2

MCQ Questions for Class 10 Maths Chapter 8 Trigonometry Question No 10:

If cos A = 4/5, then the value of tan A is

Option A : 3/5

Option B : 3/4

Option C : 4/3

Option D : 5/3