Mathematics, 22.07.2019 21:00 khaylaperry
Which could be the initial point of vector u if it has a magnitude of 17 and the terminal point (3,13)? a. (-5,-2) b. (-5,2) c. (5,-2) d. (5,2)
Answers: 1
![\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &&(~ -5 &,& -2~) % (c,d) &&(~ 3 &,& 13~) \end{array}\\\\\\ % distance value d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ ||u||=\sqrt{[3-(-5)]^2+[13-(-2)]^2}\implies ||u||=\sqrt{(3+5)^2+(13+2)^2} \\\\\\ ||u||=\sqrt{64+225}\implies ||u||=\sqrt{289}\implies ||u||=17](/tpl/images/0120/9568/3f9b7.png)
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Which could be the initial point of vector u if it has a magnitude of 17 and the terminal point (3,1...
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