Question
Asked Oct 12, 2019
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cos 90 degrees + 3 sin 270 degrees

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Expert Answer

Step 1

From unit circle we find cos 90 and sin 270 

c...

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У (0,1) ,) п 2 п 2л () 3 60 3 Зл 120° 4 135 п 909 4 45 (,)5л п (9,}) 6 150 30 (-1,0) X -п—180° 0° (1,0) 210 л 225 330 11л (Я, ) 315 300 7п 2700 5л 240 4 4л 5л 4 Зп '(4,2) 3 2 (3,34) (0,-1)

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