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Sholpan [36]
3 years ago
15

SOMEONE PLEASE HELP ME ASAP PLEASE!!!​

Mathematics
2 answers:
borishaifa [10]3 years ago
7 0

Answer:

BC is 10

Step-by-step explanation:

BD is the whole thing

CD and BC make up BD

so BD-CD=BC

     14 - 4 = 10

BC is 10

Alex17521 [72]3 years ago
4 0

Answer:

BC=10

Step-by-step explanation:

BD-BC=14-4=10

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Consider the following set of vectors. v1 = 0 0 0 1 , v2 = 0 0 3 1 , v3 = 0 4 3 1 , v4 = 8 4 3 1 Let v1, v2, v3, and v4 be (colu
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Answer:

We have the equation

c_1\left[\begin{array}{c}0\\0\\0\\1\end{array}\right] +c_2\left[\begin{array}{c}0\\0\\3\\1\end{array}\right] +c_3\left[\begin{array}{c}0\\4\\3\\1\end{array}\right] +c_4\left[\begin{array}{c}8\\4\\3\\1\end{array}\right] =\left[\begin{array}{c}0\\0\\0\\0\end{array}\right]

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\left[\begin{array}{cccc}0&0&0&8\\0&0&4&4\\0&3&3&3\\1&1&1&1\end{array}\right]

We exchange rows 1 and 4 and rows 2 and 3 and obtain the matrix:

\left[\begin{array}{cccc}1&1&1&1\\0&3&3&3\\0&0&4&4\\0&0&0&8\end{array}\right]

This matrix is in echelon form. Then, now we apply backward substitution:

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8c_4=0\\c_4=0

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4c_3+4c_4=0\\4c_3+4*0=0\\c_3=0

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3c_2+3c_3+3c_4=0\\3c_2+3*0+3*0=0\\c_2=0

4.

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3 years ago
54:46
Slav-nsk [51]
The answer is 3n-4 because 4 is being subtracted
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3 years ago
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