Multiple Choice Questions on The value of radic 3 cosec 20 deg minus sec 20 deg is equal to ........ for NDA Exam Preparation

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Multiple Choice Questions

The value of radic 3 cosec 20 deg minus sec 20 deg is equal to ........

Mathematics (NDA) Trigonometry
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    The value of √3 cosec 20° −sec 20° is equal to-

    4

    Incorrect Answer

    2

    Correct Answer

    1

    Incorrect Answer

    -4

    Incorrect Answer
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    Explanation:

    √3 / sin200 – 1 / cos200 

    2×2( √3 / 2 cos200 − 1 / 2  sin200) / 2 sin0cos200 

    = 4(sin600 cos200 – cos600 sin200 )/ sin400 

    = 4 sin400 / sin400 = 4 

    By: Yachna
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