# Class 11 Mathematics Trigonometric Functions MCQs

Refer to Class 11 Mathematics Trigonometric Functions MCQs provided below. CBSE Class 11 Mathematics MCQs with answers available in Pdf for free download. The MCQ Questions for Class 11 Mathematics with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 11 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 3 Trigonometric Functions are an important part of exams for Class 11 Mathematics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 11 Mathematics and also download more latest study material for all subjects

## MCQ for Class 11 Mathematics Chapter 3 Trigonometric Functions

Class 11 Mathematics students should refer to the following multiple-choice questions with answers for Chapter 3 Trigonometric Functions in Class 11. These MCQ questions with answers for Class 11 Mathematics will come in exams and help you to score good marks

### Chapter 3 Trigonometric Functions MCQ Questions Class 11 Mathematics with Answers

Question : In a DABC, if angle C is obtuse, then
(a) tan A tan B < 1
(b) tanAtanB £ 1
(c) tanAtanB >1
(d) None of these

Question : What is the value of cot (– 870°)?
(a) 3
(b) 1/√3
(c) - √3
(d) -1/√3

Question : What is the value of (sin 22.1/2+ cos 22.1/2)4?)
(a) 3+2√2 /2
(b) 1+2√2 /2
(c) 3√2 +2
(d) 1

Question : If sin 2A 4/5 ,= then what is the value of tanA(0≤A≤Π/4)
(a) 1
(b) – 1
(c) 1/2
(d) 2

Question : The value of cos2 48° – sin212° is
(a) √5 + 1/8
(b) √5 - 1/8
(c) √5 + 1/5
(d) √5 + 1/2/√2

Question : The value of tan 20° + 2 tan 50° – tan 70° is :
(a) 1
(b) 0
(c) tan 50°
(d) none of these

Question : What is the value of sin (5Π/12) ?
(a) √3+1/2
(b)√6+√2/4
(c) √3+√2/4
(d) √6+1/4

Question : The solution of the equation cos2q + sin q +1 = 0, lies in the interval:
(a) (-Π/4,Π/4)
(b) (-Π/4,3Π/4)
(c) (-3Π/4,5Π/4)
(d)  (5Π/4,7Π/4)

Question : What is the correct sequence of the following values?
1. sin(Π/12)
2. cos (Π/12)
3. cot (Π/12)
Select the correct answer using the code given below
(a) 3 > 2 > 1
(b) 1 > 2 > 3
(c) 1 > 3 > 2
(d) 3 > 1 > 2

Question : Solution of the equation tan x + tan 2x + tan x. tan 2x = 1 will be :
(a) x = nΠ/3 + Π/12
(b) x = nΠ/ - Π/4
(c) x = nΠ/ + Π/3
(d) x = nΠ/ ± Π/3

Question : The value of cos 1° cos 2° cos 3° ... cos 179° is
(a) 1√2
(b) 0
(c) 1
(d) – 1

Question : The number of solution of tan x + sec x = 2cos x in [0, 2 p ) is
(a) 2
(b) 3
(c) 0
(d) 1

Question : Let a,b be such that Π < α -β < 3Π    D
If sinα + sinβ = - 21/65 and ,cos α + cos β = - 27/65 .then the value of α- β /2
(a) -6/65
(b) 3/√130
(c) 6/65
(d) -3/√130

Question : Let A and B denote the statements
A : cos a + cos b + cos g = 0
B : sin a + sin b + sin g = 0
If cos (β – γ) + cos (γ – α) + cos (α – β) = -3/2 then :
(a) A is false and B is true.
(b) both A and B are true.
(c) both A and B are false.
(d) A is true and B is false.

Question : If A = sin2 x + cos4x, then for all real x :
(a) 13/16≤ A ≤ 1
(b) 1 ≤ A ≤ 2
(c) 3/4≤ A ≤  13/16
(d) 3/4≤ A ≤ 1

Question : If α + β + γ= 2p, then :
(a) tanα/2 + tanβ/2 + tanγ/2 = tanα/2.tanβ/2.tanγ/2
(b) tanα/2.tanβ/2 + tanβ/2.tanγ/2 = tanγ/2.tanα/2=1
(c) tanα/2 + tanβ/2+ tanγ/2 = tanα/2.tanβ/2.tanγ/2
(d) None of these

Question : If sin q + cosec q = 2, then sin2q + cosec2q is equal to
(a) 1
(b) 4
(c) 2
(d) None of these

Question : If sin x+ sin2 x = 1, then the value of cos12 x + 3 cos 10 x + 3 cos8 x + cos6 x – 1 is equal to
(a) 0
(b) 1
(c) –1
(d) 2

Question : If tanΘ 1/2 and tanφ 1/3 then the value of Θ + φ is
(a) Π/6
(b) Π
(c) 0
(d) Π/4

Question : The value of cos 12° + cos 84° + cos 156° + cos 132° is
(a) 1/2
(b) 1
(c) -1/2
(d) 1/8

Question : Let cos (α + β)= 4/5 and sin (α - β) = 5/13 where 0 ,≤ α,β ≤Π/4 Then tan 2α =
(a) 56/33
(b) 19/12
(c) 20/7
(d) 25/16

Question : The value of sin π/10sin 13π/10 is
(a) 1/2
(b)-1/2
(c)-1/4
(d) 0

Question : The value of sin[nΠ +(-I)n Π/4 ] nεI is
(a) 0
(b) 1/√2
(c) - 1/√2
(d) None of these

Question : The value of tanx/tan 3x wherever defined never lies between
(a) 1/2and 2
(b) 1/3 and 3
(c) 1/4 and 4
(d) 1/3 and 2

Question : If x+1/x2 cos q , then x3+1/x3 is
(a) 1/2 cos 3Θ
(b) 2 cos 3Θ
(c) cos 3Θ
(d) 1/3 cos 3Θ

Question : The number of values of x in the interval [0,3p] satisfying the equation 2sin2 x + 5sin x - 3 = 0 is
(a) 4
(b) 6
(c) 1
(d) 2

Question : The value of cosΠ/3.cosΠ/7.cos2Π/7.cos4Π/7
(a) 16
(b) -1/16
(c) 11/16
(d) 16/11

Question : If tan x = b/a ,then the value of a cos 2x + b sin 2x is:
(a) a
(b) a – b
(c) a + b
(d) b

Question : If 0 < x < p and 1 cosx + sinx =1/2 , then tan x
(a) (1-√7) /4
(b) (4-√7) /3
(c) (4+√7) /3
(d)  (1+ √7)/4

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### CBSE Class 11 Mathematics Chapter 3 Trigonometric Functions MCQs

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