If a projectile is fired with angle of elevation and initial speed v, then parametric equa- tions for its trajectory are x sv cos dt y sv sin dt 2 1 2 tt 2 (See Example 13.4.5.) We know that the range (horizontal distance traveled) is maximized when 45. What value of maximizes the total distance traveled by the projectile? (State your answer correct to the nearest degree.)

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