Page 47 - Trigonometry
P. 47

0.622   = cos     −1  (0.692)

                                    1
                              =          cos  −1 (0.692)
                                 0.622

        The keystrokes for this calculation are,

          w1q>0.692)a0

                               .622=









        The value of α is therefore 1.296. A graph of the cos

        function and linear function as shown here,




























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