Answer:
See explanation below.
Step-by-step explanation:
False.
Counter example
Let's assume that we have two vectors u,v on a bidimensional space. Lets define u and v like this:
![v = (-y,x)](https://tex.z-dn.net/?f=%20v%20%3D%20%28-y%2Cx%29)
We see on this case that
. And for this case we have this:
![u.v = x*(-y) + y(x) = -xy +xy =0](https://tex.z-dn.net/?f=%20u.v%20%3D%20x%2A%28-y%29%20%2B%20y%28x%29%20%20%3D%20-xy%20%2Bxy%20%3D0)
We satisfy that the dot product is 0 but ![u\neq 0 , v\neq 0](https://tex.z-dn.net/?f=%20u%5Cneq%200%20%2C%20v%5Cneq%200)
So then since not applies for this particular this statement is FALSE.
Answer:
20
Step-by-step explanation:
2(6+4)=
2*10=
20
Answer:
x = 1
Step-by-step explanation:
2/3x + 1/3 = 1/3x + 2/3
2/3x - 1/3x = 2/3 - 1/3
1/3x = 1/3
x = 1
Answer: 181
Step-by-step explanation:
(2-5+60x3) +2x2
(2-5+60x3) +2x2
(2-5+180) +2x2
(-3+180) +2x2
177+ (2x2)
177+4
<h2> 181</h2>
Answer: PR = 14
explanation: 11+3