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10-10-2020
Mathematics

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What is the value of ∣∣J∣∣?

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What is the value of J Enter your answer in the box class=

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10-10-2020

Answer:

2 sqrt(30)

Step-by-step explanation:

We want to find the norm of the matrix

( -2 6

4 8)

Take the square root of the sum of the squares

sqrt( (-2) ^2 + 6^2 + 4^2 + 8^2)

sqrt( 4+36+16+64)

sqrt( 120)

sqrt( 4*30)

2 sqrt(30)

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