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Math Help - Trigonometry help needed! Graphing and interpretation

  1. #1
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    Trigonometry help needed! Graphing and interpretation

    Trigonometry URGENT help needed!!! 5 Questions ((?

    g(x) = sin2x
    f(x) = cos(x-60)
    x element [-180; 180]
    I have used 30 degree intervals

    a) What is the period of f?????

    b) Determine f(x0 - g(x) if x = 0

    c) Use the graph to determine the value(s) if x for which f(x) < 0

    d) For which values of x is f(x).g(x)>0 if x element[-180; 0]

    e) Write down the equation of h if h(x) = f(x-30)

    These are the 5 questions that are bothering me in my entire maths assignment, solving all / as much as you can is appreciated Please solve them as they are important
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  2. #2
    MHF Contributor
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    Re: Trigonometry help needed! Graphing and interpretation

    Hey TechWizNo.

    Please show us any attempts and what is going on in your head.

    I'll start you off with a hint for Q1.

    Hint: The period of a function is a where f(t + a) = f(t) for all values of t. What is the value of a?
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