Transcription of Worked Solutions to Selected Exercises of Section 5
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Worked Solutions to Selected Exercises of Section 5
Section Text answers and Solutions for Selected Exercises answers to Selected Exercises of Section 1. ( )( )( )45tan,41414cos,41415sin===AAA ( )( )( )54cot,441csc,541sec===AAA 3. 14, 7 3, 60cb B=== 5. , , 28ac A=== 7. , , 25ab B=== 9. ft 11. ft 13. ft 15. feet 17. ft 19. 21. Worked Solutions to Selected Exercises of Section hypotenuse2 = 102 + 82 = 164 => hypotenuse = 164 = 2 41 1. Therefore, sin (A) = oppositehypotenuse = 102 41 = 5 41 cos (A) = adjacenthypotenuse = 82 41 = 4 41 tan (A) = sin( )cos ( ) = 5 414 41 = 54 or tan (A) = oppositeadjacent = 108 = 54 sec (A) = 1cos( )= 14 41 = 414 csc (A) = 1sin( ) = 15 41 = 415 and cot (A) = 1tan( ) = 154 = 45.
Section 5.5 Text Answers and Solutions for Selected Exercises Answers to Selected Exercises of Section 5.5 1. ( ) ( ) ( ) 4 5,tan 41 4 41,cos 41 5 41
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