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  • Question 1
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    cos2 θis not equal to

  • Question 2
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     is equal to  

  • Question 3
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    2cos−1 x = cos−1 (2x2 −1)holds true for all

  • Question 4
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  • Question 5
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    If  sin  A  + cos  A  = 1, then sin 2A is equal to

  • Question 6
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    When  x = π/2, then tan x, is

  • Question 7
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    The value of the expression  sin θ+cos θlies between

  • Question 8
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    cos−1 (cosx) = x is satisfied by ,

  • Question 9
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  • Question 10
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    If ƒ(x) = tan(x), then f-1 (1/√(3)) =

  • Question 11
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    tan x is periodic with period  

  • Question 12
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  • Question 13
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     is equal to  

  • Question 14
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  • Question 15
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  • Question 16
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    The period of the function  f(x) = tan 3x is

  • Question 17
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    The range of  tan−1 x is

  • Question 18
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    The value of    is (a, b >0)

  • Question 19
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    The solution of the equation  

  • Question 20
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     is equal to  

  • Question 21
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    sin2 250 +sin2 650  is equal to

  • Question 22
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    If  θ= tan−1 x then sin 2 θis equal to

  • Question 23
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    if x >0, then tan-1 x + tan-1 (1/x) is equal to

  • Question 24
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  • Question 25
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    If and  x  + y  + z  = xyz, then a value of  tan−1 x+tan−1 y+tan−1 z is

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