Math 142 820

# Math 142 820 - iv Csc 1 Hypotenuse/opposite theda v Sec 1...

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Yun Zheng 483 Carver Office Hours - Tues. / Thurs. 10-11:30 am Math Help Room: Carver 385 - Open Mon to Fri Tutoring Services 1060 Hixon Lied Student Success Center Graphing Calculator Due next week at rececitation (Ch 5.1 12,30,36,46,96) and (MyMathLab) 5.1 Trigonometric Functions of Acute angles 1. Trig Ratios a. An angle is acute if it is between 0 and 90 degrees b. Six trig ratios i. Sin 1. Opposite theda/hypotenuse ii. Cos 1. Adjacent to theda/hypotenuse iii. Tan 1. Opposite theda/adjacent to theda

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Unformatted text preview: iv. Csc 1. Hypotenuse/opposite theda v. Sec 1. Hypotenuse/adjacent to theda vi. Cot 1. Adjacent to theda/opposite theda c. Reciprocal Function i. Csc theda = 1/sin theda d. Cofunction and Complements i. Alpha + theda = 90 degrees ii. Alpha = 90 degrees – theda iii. Cofunction Identities 1. Sin theda = cos (90 degrees – theda) 2. Cos theda = sin(90 degrees – theda) 3. Tan theda = cot(90 degrees – theda) 4. Cot theda = cot(90 degrees 5....
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Math 142 820 - iv Csc 1 Hypotenuse/opposite theda v Sec 1...

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