Multiple Choice Questions on What is the simplified value of sin2 90 ndash theta ndash sin 90 ndash theta sin theta tan theta ........ for SSC CGL Exam Preparation

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Multiple Choice Questions

What is the simplified value of sin2 90 ndash theta ndash sin 90 ndash theta sin theta tan theta ........

Quantitative Aptitude (CGL) Trignometry
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    What is the simplified value of sin2 (90 – θ) – [{sin(90 – θ)sin θ}/tan θ]?

    1

    Incorrect Answer

    cosec θ

    Incorrect Answer

    0

    Correct Answer

    cos θ

    Incorrect Answer
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    Explanation:

    sin2 (90 – θ) – [{sin(90 – θ)sin θ}/tan θ]
    =cos2θ-(cosθ*sinθ)*cosθ/sinθ
    =cos2θ-cos2θ=0

    By: MIRZA SADDAM HUSSAIN
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