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Total number of values of ' x ' satisfyi...

Total number of values of `' x '` satisfying the equation, `2^(cos2x)=3. 2^cos^(2x)-4` and the inequality `x^2lt=30` is: 1 (b) 2 (c) 3 (d) 4

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Knowledge Check

  • Number of values of x in [0, 2pi] and satisfying the equation cos x cos2x cos3x=1//4 is :

    A
    6
    B
    8
    C
    20
    D
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    A
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    4
    D
    8

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