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Rocket Launch 4000 it. Fig. 26: Rocket launch 8. (Q 33) You are observing a rocket launch from a point 4000 feet from the launch pad (Fig. 25). When the observation angle is 11/3, the angle is increasing at rt/5 feet per second. How fast is the rocket traveling? (Hint: 8 and h are functions of t.) Section 7.3 9. Calculate the derivative: D (M). arcco s(x) 10. Find the following integral: fdx