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March 28, 2017

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Find one numerical value for
cot x/cos x = 5

  • TRIG - ,

    cotx = 5cosx
    cosx/sinx - 5cosx = 0
    cosx(1/sinx - 5) = 0
    cosx = 0 or 1/sinx = 5

    if cosx = 0, x = π/2 , 3π/2

    if 1/sinx = 5
    sinx = 1/5
    x = .20136 or 2.94023

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