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Unformatted text preview: Math 115 001 Test 1 - Sample Problems Fall 2011 Here are some sample problems to give you an idea of the type of problems that will appear on Test 1. This is not a comprehensive review. (1) Find the limits: lim x x 3- 1 x ; lim x x 3- 2 x 2 + x- 3 x 3 + 5 x ; lim x - x 2 + 2 x + 1 5 x 4 + 10 x 2 ; lim x sin x 2 x . (2) Use the definition of derivative to find the derivative of f ( x ) = x + 1. No credit if you dont use the definition. (3) Find the derivative of the function. You dont have to use the definition, but you must show your work. f ( x ) = x 3 ln( x 2 + 1) (4) Find the equation of the tangent line to the graph of y = 2 x- 1 x + 1 at x = 1. (5) Use limits to find all asymptotes of the function f ( x ) = 2 x 2 + 1 x 2- 4 . You must show your reasoning based on limits. (6) Let g ( x ) = x 3- 3 x 2 + 10. Find all critical points of g ( x ) and intervals where g ( x ) is increasing and decreasing. Find all points of inflection and intervals where it is concaveincreasing and decreasing....
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