+0  
 
0
55
1
avatar

hello!! i need help because this problem wasnt on the chart our teacher gave us: 

 

Find $\cos (-135^\circ)$.

 

TYSM!!! :))

 Aug 2, 2021
 #1
avatar+34316 
+1

it is in Quadrant III   so cos is negative     reference angle is   450        Enough clues?

 Aug 2, 2021

20 Online Users

avatar
avatar
avatar