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aksik [14]
3 years ago
7

Simplify.√54 -4√75 +3√27 -√63 +3√600

Mathematics
2 answers:
dalvyx [7]3 years ago
6 0
The answer is 53.84!!!!!
laiz [17]3 years ago
3 0
The answer than you are looking for is 53.84
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Please solve these questions on the topic of exponents
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Answer/Step-by-step explanation:

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4 0
3 years ago
Determine if the matrix below is invertible. Use as few calculations as possible. Justify your answer. [Start 4 By 4 Matrix 1st
Len [333]

Answer:

Yes, it is invertible

Step-by-step explanation:

We need to find in the matrix determinant is different from zero, since iif it is, that the matrix is invertible.

Let's use co-factor expansion to find the determinant of this 4x4 matrix, using the column that has more zeroes in it as the co-factor, so we reduce the number of determinant calculations for the obtained sub-matrices.We pick the first column for that since it has three zeros!

Then the determinant of this matrix becomes:

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And the determinant of these 3x3 matrix is very simple because most of the cross multiplications render zero:

Det\left[\begin{array}{ccc}1&4&6\\0&3&8\\0&0&1\end{array}\right] =1 \,(3\,*\,1-0)+4\,(0-0)+6\,(0-0)=3

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and then the matrix is invertible

4 0
3 years ago
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