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Unformatted text preview: & We will be using calculators for trigonometric evaluations all semester. The ability to use your calculator correctly will have a major impact on your grade for this course. Until we cover radians (chapter 3), keep your calculator in degree mode. When the calculator is in degree mode, utilizing the symbol is not necessary unless minutes and seconds are also involved. We want to be able to use the calculator in two ways, illustrated below. That is, given an angle , find a specific trig value for that angle. Or, if we know the trig value, find the angle that has that trig value. Trig function Inverse trig function  I: Given an angle , determine a trig function value for that angle. To go from the knowing angle to computing the trig value, we use the trig functions as they appear on the keypad, utilizing reciprocal relationships whenever necessary. examples: a) sin . . 38 9 0 6280 = [sin, 38.9, enter] b) cot tan . 25 1 25 21445 = = [1, , tan, 25, enter] practice: Compute the following, round your answers to four decimal places....
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This note was uploaded on 11/16/2011 for the course MAC 1114 taught by Professor Cohen during the Fall '09 term at Santa Fe College.
 Fall '09
 COHEN
 Trigonometry

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