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avatar+223 

This is what i got so far.

-19 x 6 + -13(-13)= 55

Now im a bit confused. Do I find each seperate square root angle betweeen the two?

||u|| = ✓​-192 + 62 

||v|| = ✓-132 + (-13)2

 

then i did 55/5 ✓146 = which then i did inverse cos and got a degree of like 24.44.

Veteran  Mar 19, 2017
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1+0 Answers

 #1
avatar+75324 
+1

u =  < -19. - 13 >

v = < 6 , -13 >

 

u + v    =   < -19 + 6, -13 + - 13 >    =  < -13, -26 >

 

ll u + v ll   =    sqrt [ (-13)^2 + (-26)^2 ]   ≈ 29.0689

 

 

cool cool cool

CPhill  Mar 19, 2017

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