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3 years ago

What is 1 +1 pleasssss help

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

3 0

Answer:

1+1=2

This is the answer of the questions.

This process is called addiction

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in exercises 15-20 find the vector component of u along a and the vecomponent of u orthogonal to a u=(2,1,1,2) a=(4,-4,2,-2)

Nimfa-mama [501]

Answer:

The component of $\vec u$ orthogonal to $\vec a$ is $\vec u_{\perp\,\vec a} = \left(\frac{9}{5},\frac{6}{5},\frac{9}{10},\frac{21}{10}\right)$ .

Step-by-step explanation:

Let $\vec u$ and $\vec a$ , from Linear Algebra we get that component of $\vec u$ parallel to $\vec a$ by using this formula:

$\vec u_{\parallel \,\vec a} = \frac{\vec u \bullet\vec a}{\|\vec a\|^{2}} \cdot \vec a$ (Eq. 1)

Where $\|\vec a\|$ is the norm of $\vec a$ , which is equal to $\|\vec a\| = \sqrt{\vec a\bullet \vec a}$ . (Eq. 2)

If we know that $\vec u =(2,1,1,2)$ and $\vec a=(4,-4,2,-2)$ , then we get that vector component of $\vec u$ parallel to $\vec a$ is:

$\vec u_{\parallel\,\vec a} = \left[\frac{(2)\cdot (4)+(1)\cdot (-4)+(1)\cdot (2)+(2)\cdot (-2)}{4^{2}+(-4)^{2}+2^{2}+(-2)^{2}} \right]\cdot (4,-4,2,-2)$

$\vec u_{\parallel\,\vec a} =\frac{1}{20}\cdot (4,-4,2,-2)$

$\vec u_{\parallel\,\vec a} =\left(\frac{1}{5},-\frac{1}{5},\frac{1}{10},-\frac{1}{10} \right)$

Lastly, we find the vector component of $\vec u$ orthogonal to $\vec a$ by applying this vector sum identity:

$\vec u_{\perp\,\vec a} = \vec u - \vec u_{\parallel\,\vec a}$ (Eq. 3)

If we get that $\vec u =(2,1,1,2)$ and $\vec u_{\parallel\,\vec a} =\left(\frac{1}{5},-\frac{1}{5},\frac{1}{10},-\frac{1}{10} \right)$ , the vector component of $\vec u$ is:

$\vec u_{\perp\,\vec a} = (2,1,1,2)-\left(\frac{1}{5},-\frac{1}{5},\frac{1}{10},-\frac{1}{10} \right)$

$\vec u_{\perp\,\vec a} = \left(\frac{9}{5},\frac{6}{5},\frac{9}{10},\frac{21}{10}\right)$

The component of $\vec u$ orthogonal to $\vec a$ is $\vec u_{\perp\,\vec a} = \left(\frac{9}{5},\frac{6}{5},\frac{9}{10},\frac{21}{10}\right)$ .

4 0

3 years ago

michael basketball team practice fir 2 hours and 40 minutes yesturday and 3 hours 15 minutes today.how much longer did team prac

Serjik [45]

Answer:

35 minutes

Step-by-step explanation:

2 hrs 4 min= 160 min

3 hrs 15 min= 195 min

195-160=35

6 0

4 years ago

What does splitting a verb mean?

Stels [109]

Splitting a verb represents the meaning to divide lengthwise basically by layers or along a grain.

Explanation:

Splitting a verb represents the meaning as follow :

Word split defines to divide any group into small groups or subgroups.
Splitting a verb explains to divide lengthwise basically in layer form or along a grain.
Splitting a large group into small groups as per the category defined .
For example : Students participates in discussion divided into different groups.
It makes the work easy .
It represent any number or group apart forcibly.

Therefore, splitting a verb represents to divide lengthwise basically layer wise or along a grain.

Learn more about splitting here

brainly.com/question/13188770

#SPJ4

7 0

1 year ago

PLEASE HELP!! Worth 15 points

nataly862011 [7]

Answer:

$x = \frac{a}{y}$

explanation:

A = xy

divide y on both sides.

A/y = xy/y

x = A/y

5 0

3 years ago

HELP ME IT IS DUE TODAY AND NO LINKS.

DENIUS [597]

Robs median is less than Anna’s. As for the second part of the question since his is less then Annas that means he is at a higher elevation. Hope this helps!!

7 0

3 years ago

Read 2 more answers