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httpsi www.mathxl.com/student/player rest aspx testid iis08212728centerwin yes Take a Test Nicolette Ribeiro (65 Google Week of Apr 23, 2017 Guess whose Trash (GAME) Yourube MATH 1250 Trigonometry -Winter 2017-DA1 31947-lyons Quiz Q14 (9.4 and 9.5) This Question: 1 pt 1 of 6 (o complete) Given v and w -j (a) find the dot product v. w. (b) find the angle between vand w. (e) state whether the vectors are paralel, orthogonal, or neither. (a) v.w (b) What is the angle betweenv and w? (Do not round until the final answer. Then round to the nearest tenth as needed.) (e) Are vectorthw and w paralel, orthogonal, or neither? orthogonal

Explanation / Answer

given v=9j,w=-1j

(a)

v.w=(9*-1)

v.w=-9

(b)

cos(angle between v and w)= (v.w)/|v||w|

cos(angle between v and w)= (-9)/(9*1)

cos(angle between v and w)= -1

angle between v and w = 180o

c)vectors v and w are parallel but opposite in direction

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