Multiple Choice Questions on Satisfying the equation the number of values of lsquo x rsquo in the interval 0 5 satisfying the equ........... for NDA Exam Preparation

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Multiple Choice Questions

Satisfying the equation the number of values of lsquo x rsquo in the interval 0 5 satisfying the equ...........

Mathematics (NDA) Trigonometry
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    Satisfying the equation, the number of values of ‘x’ in the interval [0, 5 ] , satisfying the equation 3sin 2x -7sinx +2 =0 is?

    5

    Correct Answer

    3

    Incorrect Answer

    1

    Incorrect Answer

    2

    Incorrect Answer
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    Explanation:

    3sin 2x -7sinx +2 =0

    (3 sinx -1)(sinx -2)=0

    Sinx ≠2

    Sinx =1/3 =sin θ

    0<θ<π/2

    X=θ  ,π-θ ,2π+θ ,3π-θ ,4π+θ

    By: bhavesh kumar singh
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