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The question: In what quadrant does the terminal ray of the angle lie?

−5π/6 ------> quadrant 3

45π/ 7 --------> quadrant 1

−274 degrees ------> quadrant 1

478 degrees --------> quadrant 2

 Jan 15, 2021
 #1
avatar+116126 
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First one   :   -5pi/6 =  -150    ....360 - 150 = 210 degrees.....  Correct

 

Second one  :   45pi/7  =   6 pi  + 3pi/7   :   Correct

 

Third  :  -274 degrees  =  360  - 274  = 86 degrees  ......Correct  !!!

 

Last    478 - 360 =   118 degrees  = 2nd Q   ....Correct  !!!!

 

Good job   !!!!

 

cool cool cool    

 Jan 15, 2021
 #2
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smileythanks!!

lovesosa12  Jan 15, 2021

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