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  1. example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

    [tex]How do you divide rational expressions?[/tex]

  2. Sec x =  1/Cosx

    Pi radians = 180 degress

    Pi/12 = 180/12 = 15 degrees.

    Sec15° = 1/Cos15°

    Sec pi/12 = Sec 15° = 1/Cos 15°

    Cos 15° = 0.9659  using a calculator.

    Sec pi/12 = Sec 15° = 1/Cos 15° = 1/0.9659 = 1.0353

    Sec Pi/12 = 1.0353

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