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Day 3 Notes

Day 3 Notes. 1.4 Definition of the Trigonometric Functions. OBJ:  Evaluate trigonometric expressions involving quadrantal angles OBJ:  Find the angle of smallest possible measure coterminal with a given angle. 13) cos 90 º + 3 sin 270 º. + 3( ) 0 + 3( ) 0 + 3(-1) -3.

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Day 3 Notes

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  1. Day 3 Notes

  2. 1.4 Definition of the Trigonometric Functions OBJ: Evaluate trigonometric expressions involving quadrantal angles OBJ:Find the angle of smallest possible measure coterminal with a given angle

  3. 13) cos 90 º + 3 sin 270º + 3( ) 0 + 3( ) 0 + 3(-1) -3

  4. 15) 3 sec 180 – 5 tan 360  3( ) – 5( ) 3(-1) – 5( ) 3(-1) – 5( ) 3(-1) – 5(0) -3

  5. 17) tan360+ 4sin180+ 5cos2180 + 4( ) + 5( )2 0 + 4( ) + 5( )2 0 + 4( ) + 5( )2 0 + 4(0) + 5( )2 0 + 4(0) + 5(-1)2 5

  6. 19) sin 2 180  + cos 2 180  + ( )2 0 + ( )2 0 + (-1)2 1

  7. 21)sec2180- 3sin2360+ 2cos180 ( )2 – 3( )2 + 2 ( ) (-1)2 – 3(0)2 + 2 (-1) (-1)2 – 3(0)2 + 2 (-1) (-1)2 – 3(0)2 + 2 (-1) 1 – 2 -1

  8. 23)2sec2360-4sin290+5cos180 2( )2 – 4( )2 + 5( ) 2(1)2 – 4( )2 + 5( ) 2(1)2 – 4(1)2 + 5( ) 2(1)2 – 4(1)2 + 5(-1) 2 – 4 + 5 3

  9. -4sin 90+3cos 180+2csc 270 -4( ) + 3 + 2 -4(1) + 3 + 2 -4(1) + 3-1 + 2 -4(1) + 3-1 + 2-1 – 4 + 3 + 2 1

  10. DEF:Coterminal Angles Angles with the same initial side and the same terminal side

  11. y 5 x -5 -5 5 EX:  Find the angles of smallest possible measure coterminal with the following angles: 908 

  12. y 5 x -5 -5 5 EX:  Find the angles of smallest possible measure coterminal with the following angles: 908  908  – 720  188 

  13. y 5 x -5 -5 5 EX:  Find the angles of smallest possible measure coterminal with the following angles: - 75 

  14. y 5 x -5 -5 5 EX:  Find the angles of smallest possible measure coterminal with the following angles: - 75  360  – 75  285 

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