Question:

Calculate the following?

by  |  earlier

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1)

| 1...2...2 |

| 3...3...6 |

| 0...1...4 |

2)

| √2..0...0...0 |

| -8..√2..0...0 |

| 7....0...-1..0 |

| 9....5...6...1 |

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  1. ad1)

    det A=1*3*4+3*1*2+0-0-1*6*1-4*2*3

    ad 2)

    det A= sqrt(2)*sqrt(2)*(-1)*1=-2

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