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CBSE Questions for Class 10 Maths Introduction To Trigonometry Quiz 3 - MCQExams.com

If tanθ+cotθ=3, then tan4θ+cot4θ=
  • 47
  • 162
  • 24
  • 48
If cosx+secx=2 for a positive odd integer n then cosnx+secnx is
  • 1
  • 1
  • 2
  • 2

If sinx+cosx=0, then sinx=
  • 5+12
  • 5+18
  • 518
  • 512
Eiminate θ from x=1+tanθ,y=2+cotθ
  • xy+1=x+y
  • xy+2=2x+y
  • xy+1=2x+y
  • 1=2y+x
The maximum value of
cosx(cosx1sinx+1sinxcosx) is 
  • 4
  • 3
  • 2
  • 1
The value of the expression cosec (750+θ)sec(150θ)tan(550+θ)+cot(350θ), is
  • 1
  • 0
  • 1
  • 32
sin(450+θ)cos(450θ) is equal to
  • 2cosθ
  • 0
  • 2sinθ
  • 1
If secα=5x+120x, then secα+tanα is equal to
  • 5x
  • 120x
  • 10x or 110x
  • 10x or 110x
If x.cosA=1 and tanA=y, then x2y2 is equal to :
  • tanA
  • 1
  • sinA
  • tanA
In the given figure, ABC is right angled at B and cotA=34 . If AC=10cm, then the length of AB is:

83236_c2aa4f2ddc7d4387aa1de740b0531195.png
  • 3cm
  • 4cm
  • 6cm
  • 8cm
The value of sin230 - cos230 is:
  • 12
  • 32
  • 32
  • 23
If cosθ=23, then the value of 2secθ+4tan2θ7 is equal to
  • 1
  • 0
  • 3
  • 4
If 3cosθ=2sinθ, then the value of 4sinθ3cosθ2sinθ+6cosθ is:
  • 18
  • 13
  • 12
  • 14
If tanA=512, find the value of (sinA+cosA)×secA:
  • 613
  • 712
  • 1712
  • 1217
The value of tan1.tan2.tan3..........tan89 is :
  • 0
  • 1
  • 2
  • 12
If sinΘ  = cosΘ, then the value of Θ is :
  • 0
  • 45
  • 60
  • 30
The value of tan45sin30+cos60 is :
  • 12
  • 1
  • 12
  • 2
Simplify:cos600+sin600cos600sin600
  • 32
  • 3+2
  • (3+2)
  • 1
  • 0
In the figure given below, ΔABC is right angled at B and tanA=43. If AC=15 cm, then the length of BC is :

83560_80be1af847604349bd0f44a54ceb4a5b.jpg
  • 4 cm
  • 3 cm
  • 12 cm
  • 9 cm
Which one of the following is correct ?

  • sec2α=1tan2α
  • sin2α=1+cos2α
  • tanαcotα=1
  • None of these
tan9o×tan27o×tan63o×tan81o=

  • 4
  • 3
  • 2
  • 1
If tan300=x,tan450=y,tan600=z, then which of the following is/are correct?
  • x+y=z
  • xy=z
  • xz=y
  • y+z=x
The value of x from the equation

xcos450.sin600=tan2600tan2300, is
  • 3
  • 2
  • 1
  • None of these
The value of sec (900θ)sinθ is


  • secθ
  • cscθ
  • tanθ
  • 1
The value of sin2q.cos2q(sec2q+cosec2q) is
  • 2
  • 4
  • 1
  • 0
The value of sin6q+cos6q+3sin2qcos2q is-
  • 0
  • 1
  • 2sinqcosq
  • sin4q+cos4q
[1+tanθ1+cotθ]4 is equal to
  • (1+tan2θ1+cot2θ)2
  • (1+cotθ1+tanθ)2
  • (1+tanθ1cotθ)2
  • (1cot2θ1+tan2θ)2
The value of 
 32cot2458sec260+8cos330

  • 33
  • 23
  • 3
  • 63
cotθ+tanθ=
  • 1sinθcosθ
  • secθcosecθ
  • cotθsec2θ
  • all of these
In the given figure, the side PQ (in cm) is

98715_fe04325f97a547399b1a9cb2d569ab23.png
  • 25
  • 50
  • 75
  • 80
0:0:1


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