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pre-calculus

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Convert from polar to rectangular r=3cos2theta

  • pre-calculus -

    x= r cosTheta=3cos(2Theta)cosTheta
    y= r sin Theta=3cos(2Theta)sinTheta

  • pre-calculus -

    In google type :

    r=3cos2theta

    When you see list of results click on :

    Advanced Math: precal, trig identities, conversion

    You will see answer.

  • pre-calculus -

    Identities r everywhere!!! :/, thank you 4 the info appreciated

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