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15 June, 14:11

4cos (10x) + 2=2

What would this equal in Degrees?

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Answers (1)
  1. 15 June, 14:18
    0
    Simplifying

    4cos (10x) + 2 = 2

    Remove parenthesis around (10x)

    4cos * 10x + 2 = 2

    Reorder the terms for easier multiplication:

    4 * 10cos * x + 2 = 2

    Multiply 4 * 10

    40cos * x + 2 = 2

    Multiply cos * x

    40cosx + 2 = 2

    Reorder the terms:

    2 + 40cosx = 2

    Add '-2' to each side of the equation.

    2 + - 2 + 40cosx = 2 + - 2

    Combine like terms: 2 + - 2 = 0

    0 + 40cosx = 2 + - 2

    40cosx = 2 + - 2

    Combine like terms: 2 + - 2 = 0

    40cosx = 0

    Solving

    40cosx = 0

    Solving for variable 'c'.

    Move all terms containing c to the left, all other terms to the right.

    Divide each side by '40'.

    cosx = 0.0

    Simplifying

    cosx = 0.0

    The solution to this equation could not be determined.
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