Multiple Choice Questions on The value of cos225 deg cos270 deg is ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

The value of cos225 deg cos270 deg is ........

Quantitative Aptitude ( CCS) Trignometry
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    The value of cos225° + cos270° is

    -√2

    Incorrect Answer

    -1/√2

    Correct Answer

    1

    Incorrect Answer

    2

    Incorrect Answer
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    Explanation:

    From the given data
    ⇒ cos(180 + 45)° + cos (270)°
    = - cos(45°) + 0 = - 1/√2

    By: MIRZA SADDAM HUSSAIN
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