Answer with Step-by-step explanation:
We are given that
u+ v and u-v are orthogonal
We have to prove that u and v must have the same length.
When two vector a and b are orthogonal then

By using the property

We know that



Magnitude is always positive
When power of base on both sides are equal then base will be equal
Therefore,

Hence, the length of vectors u and v must have the same length.
Answer:
I believe it's going to be C) rectangle.
Step-by-step explanation:
Calculate the 1st quartile of the data set below: 53, 54, 71, 95, 108, 110, 115, 120, 128, 128, 129, 141, 143, 158, 193
garik1379 [7]
<span>The first quartile, is the median of the lower half of the data set. That means we have to find the median. If you write these numbers down on a piece of paper and x them out you can easily find the median! The median is 120. Hope this helps! <3</span>
Answer:
1 x 10^10
2 x 10^-10
7 x 10^-11
8 x 10^-11
Step-by-step explanation: