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The point (10,-3) is on the terminal side of an angle t. Find cot(t) to 2 decimal places.

Deathstroke_rule  Apr 7, 2017
 #1
avatar+89775 
+1

 

(10, -3)

 

cot [t]  = x / y

 

cot [t]  =  10/-3  =  -3.33

 

However.......if you want to know the value of  t, we have

 

cot-1 ( 10/-3)  ≈  -16.69°...but this angle lies in the 4th quadrant so we have

 

360 - 16.69  ≈ 343.31°

 

 

cool cool cool  

CPhill  Apr 7, 2017

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