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# Precalculus (C) MATH 1508

UTEP

GPA 3.52

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This 7 page Class Notes was uploaded by Fae Lehner on Thursday October 29, 2015. The Class Notes belongs to MATH 1508 at University of Texas at El Paso taught by Staff in Fall. Since its upload, it has received 16 views. For similar materials see /class/231274/math-1508-university-of-texas-at-el-paso in Mathematics (M) at University of Texas at El Paso.

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Date Created: 10/29/15

Math 15 08 Name D Wilson Another Math 1508 Review 1 Find all solutions of the equation in the interval 07 27139 a sinm74sin3z0 b sin2 3m 4 sin 3m 73 c 2sin2z 2cosz d cos2micosmi20 2 Solve the system of linear equations and check the solutions algebraically a 2miz 79 z3y 4 2274m 72 b y 72 3 327 2y 77 myz 2 3 A circle of area 647139 cm2 is drawn using a compass whose legs are 15 cm long Find the angle formed by the legs of the compass 4 Find the angle of a leaning 40 foot pole if the shadow it casts is 35 feet long7 and the angle of elevation is 50 Assume that the pole is leaning in a direction parallel to its shadow 5 A ship sails from a port and travels 130 miles due east when it receives a call to help the crew of a sailboat that is 45 miles away Looking from the port7 the sailboat is 13 south of the east west line How should the ship change its course in order to reach the sailboat 6 An observer from a lighthouse 440 feet above sea level spots two ships directly offshore The angles of depression to the ships are 5 and 9 Determine the distance between the two ships T An airplane ies 370 miles from point A to point B7 with a bearing of N 24quot E It then ies 240 miles from point B to point C7 with a bearing of N 37quot W a Find the distance from A to C In Find the hearing from A to C 00 Verify the identities a sinm y sinm 7 y sin2 z 7 sin2 y 1 1 7 1sinm 1cscm 7 b 9 Find the formula for the average daily temperature at a research station in Antarctica if the coldest temperature of 71250 F is measured in July7 and the warmest of 20 F is measured in January a Use the function y acosbz 7 c d7 With a phase shift of zero 10 Use the function y acosbz 7 c d7 with a positive phase shift c Use the function y asinbz 7 c d 10 Find the equation of the line passing through the point 13 and the vertex of the parabola 2 y 72m 6m 7 9 11 Find the equation of the line passing through the point 27 2 and the center of the circle 7 72 y 112 42 2 7 12 Let x Identify the following features of the function7 and then sketch m a Zeros7 if any 10 Vertical asymptotes7 if any c Horizontal asymptotes7 if any 1 Graph 13 Find all six trig functions of 9 if sin0 and tan0 lt 0 14 Evaluate the following as algebraic expressions 1 a sin cosil 1 tan 1 as an algebraic expression 3 15 Solve the following equations a y 31n3t 7 5007 when y 20

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