Multiple Choice Questions on The value of tan80 deg tan10 deg sin270 deg sin220 deg is ........ for SSC CGL Exam Preparation

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Multiple Choice Questions

The value of tan80 deg tan10 deg sin270 deg sin220 deg is ........

Quantitative Aptitude (CGL) Trignometry
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    The value of tan80° tan10° + sin270° + sin220° is 

    0

    Incorrect Answer

    1

    Incorrect Answer

    2

    Correct Answer

    √3/2

    Incorrect Answer
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    Explanation:

    = tan80° tan10° + sin270° + sin220°
    = tan80° tan(90o -80o) + sin2(90-20°) + sin220°
    = tan80° cot80o + cos220 + sin220° = 1 + 1=2

    By: MIRZA SADDAM HUSSAIN
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