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tatiyna
3 years ago
9

Find the magnitude of wx for w(-3 5 4) and x(9 5 3)

Mathematics
2 answers:
Mariulka [41]3 years ago
6 0

Answer:

Magnitude = \sqrt({145).

Step-by-step explanation:

Given : wx for w(-3 5 4) and x(9 5 3).

To find : find the magnitude of wx .

Solution : We have given that w(-3 5 4) and x(9 5 3).

Magnitude = \sqrt({x_{2} -x_{1} )^{2}+({y_{2} -y_{1} )^{2} +({z_{2} -z_{1})^{2}.

x_{1}= -3 , x_{2} = 9 , y_{1} = 5 , y_{2} = 5, z_{1} = 4, z_{2} = 3.

Plugging the values in above formula ,

Magnitude = \sqrt({9 - (-3))^{2}+({5-5 )^{2} +({3 -4)^{2}.

Magnitude = \sqrt({12)^{2}+({0 )^{2} +({-1^{2}.

Magnitude = \sqrt({144+0+1).

Magnitude = \sqrt({145).

Therefore, Magnitude = \sqrt({145).

Hatshy [7]3 years ago
3 0

Answer:  Magnitude of wx is \sqrt{145}

Step-by-step explanation:

Since we have given that

w(-3,5,4)=-3\hat{i}+5\hat{j}+4\hat{k}\\\\x(9,5,3)=9\hat{i}+5\hat{j}+3\hat{k}

Now, first we will find 'wx':

wx=Initial-Final\\\\wx=(9+3)\hat{i}+(5-5)\hat{j}+(3-4)\hat{k}\\\\wx=12\hat{i}-1\hat{k}

We need to find the "magnitude":

\mid wx\mid=\sqrt{12^2+1^2}=\sqrt{144+1}=\sqrt{145}

Hence, Magnitude of wx is \sqrt{145}

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