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Arithmetic Aptitude :: Trigonometry

Trigonometry - Section-1
  1.  Find the value of A between 270° and 360° if sin^2 A – sin A = 1

    2. A.

    300°
    B.

    310°
    C.

    320°
    D.

    330°

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  2.  If cos 65° + cos 55° = cos θ, find θ in radians

    3. A.

    0.087
    B.

    0.765
    C.

    1.213
    D.

    1.421

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  3.  Find the value of sin (arc cos15/17)

    4. A.

    8/11
    B.

    8/15
    C.

    8/17
    D.

    8/19

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  4.  The sine of a certain angle is 0.6, calculate the cotangent of the angle.

    5. A.

    3/4
    B.

    4/3
    C.

    4/5
    D.

    5/4

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  5.  If sec 2A =1/sin13A, determine the angle A in degrees.

    6. A.

    3°
    B.

    5°
    C.

    6°
    D.

    7°

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  6.  If tan x =1/2, tan y = 1/3, what is the value of tan (x + y)?

    7. A.

    1
    B.

    2
    C.

    1/2
    D.

    1/6

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  7.  Find the value of y in the given: y = (1 + cos θ) tan θ

    8. A.

    sin θ
    B.

    cos θ
    C.

    sin 2θ
    D.

    cos 2θ

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  8.  Find the value of (sin θ + cos θ tanθ)/cos θ

    9. A.

    2 sin θ
    B.

    2 tan θ
    C.

    2 cos θ
    D.

    2 cot θ

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  9.  Simplify the equation sin^2θ(1 + cot^2θ)

    10. A.

    1
    B.

    sin^2θ
    C.

    sec^2θ
    D.

    sin^2θsec^2θ

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  10.  Simplify the expression sec θ – (sec θ)sin^2θ

    11. A.

    sin θ
    B.

    cos θ
    C.

    cos^2θ
    D.

    sin^2θ

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