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Trignometric Ra...

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  • Question 1
    2 / -0.83

    cos 68 °cos 8 °+ sin 68 °sin 8 °= ?

  • Question 2
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    In a triangle ABC, tan A/2 = 5/6, tan B/2 = 20/37, then tan C/2  is equal to:

  • Question 3
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    In a triangle ABC, cosec A (sin B cos C + cos B sin C) equals:

  • Question 4
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    The value of Cos75 °is equal to

  • Question 5
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    Sin A = 1/√10 , Sin B = 1/√5  If A and B are both acute angles, then, A+B =?

  • Question 6
    2 / -0.83

    If 3 ×tan(x –15) = tan(x + 15), then the value of x is:

  • Question 7
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    The value of tan 20 °×tan 40 °×tan 80 °is

  • Question 8
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    Chose which of the following expressions equals sinA + cosA.

  • Question 9
    2 / -0.83

    If acos x + bsin x = c, then the value of (asin x –bcos x)² is:

  • Question 10
    2 / -0.83

    sin(60 °+ A) cos(30 °–B) + cos(60 °+ A) sin(30 °–B) is equal to:

  • Question 11
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    If cos a + 2cos b + cos c = 2 then a, b, c are in

  • Question 12
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    sin(n+1)A sin(n+2)A + cos(n+1)A cos(n+2)A =

  • Question 13
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    cos(π/4 - x) cos (π/4 - y) -sin(π/4 - x) sin(π/4 - y) =

  • Question 14
    2 / -0.83

    The value of tan 3A –tan 2A –tan A is

  • Question 15
    2 / -0.83

    Which of the following is incorrect:

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