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anonymous
 5 years ago
Find the angle between the vectors u and v if u = ( 1, 1) and v = (3, 1). Round answer to two decimal places.
A.
114.64o
B.
115.33o
C.
116.57o
D.
117.53o
E.
117.98o
anonymous
 5 years ago
Find the angle between the vectors u and v if u = ( 1, 1) and v = (3, 1). Round answer to two decimal places. A. 114.64o B. 115.33o C. 116.57o D. 117.53o E. 117.98o

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1cos(t) = v.u/vu t = cos^1(v.u/vu)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The angle between a horizontal line. ( say the x axis) and 1,1 is 45 The angle between the horizontal and 3,1 is 15.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So the angle should be 30

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1the angle is measured in counter clockwise rotation

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok so amistre.... I have that formula and plugged in my numbers 2/llull llvll

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.11,1 3,1  3+1 = 2 = v.u

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1v = sqrt(2); u = sqrt(10) = sqrt(20) = 2sqrt(5)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.12  = 1/sqrt(5) right? 2 sqrt(5)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes when simplified noew I take the arc cos of that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so it's looking like c

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1cos^1(1/sqrt(5)) = .... 116.5650
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