![1.\\\\\bold{v_1}=\langle2,4\rangle\qquad\bold{v_2}=\langle-1,5\rangle\\\\ \bold{v_1}\circ\bold{v_2}=2\cdot(-1)+4\cdot5=-2+20=18\qquad [\text{C}]\\\\\\ 2.\\\\ \bold{v_1}= \langle2, 5\rangle\qquad \bold{v_2}= \langle4, -3\rangle\\\\\\ \bold{v_1}\circ\bold{v_2}=2\cdot4+5\cdot(-3)=8-15=-7\\\\||\bold{v_1}||=\sqrt{2^2+5^2}=\sqrt{4+25}=\sqrt{29}\\\\ ||\bold{v_2}||=\sqrt{4^2+(-3)^2}=\sqrt{16+9}=\sqrt{25}=5\\\\\\ ](/tpl/images/0442/5333/91f31.png)
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1. if v1= (2, 4) and v2= (-1, 5), then v1*v2 is equal to which of the following?
a...
Mathematics, 04.01.2020 14:31 somedudeontheIn
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1. if v1= (2, 4) and v2= (-1, 5), then v1*v2 is equal to which of the following?
a. 22
b. (8, -5)
c. 18
d. (-2, 20)
i think its either c or d but idk if you are supposed to add the two numbers together which would equal c or not.
2. if v1= (2, 5) and v2= (4, -3), then the angle between the two vectors is °.
Answers: 2
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