37. Find the equation of the tangent line to -2x^2 +y+sin (xy)= -2 at (1,0). A)

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37. Find the equation of the tangent line to -2x^2 +y+sin (xy)= -2 at (1,0). A) y=0 B) y=2x-2 C) y=4x-2 D) y -2x -2 E) None of these 38. A plane is flying at a constant altitude of 5 miles and a constant speed of 400 miles per hour on a straight course that will take it directly over an observer on the ground. How fast is the angle of elevation of the observer?s line of sight changing when the horizontal distance from her to the plane is d miles and the plane is moving any from her? Give your answer ?n radians per hour in terms of d. 39.Find 40. Determine if an = n ?root n^2 -19n converges and ?fit does, find lim n right arrow infinity a,,. D) Diverges E) None of these

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