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Arif Akhter
Arif Akhter asked in Science & MathematicsMathematics · 7 years ago

How will you prove it?

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2 Answers

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  • Raffaele
    Lv 7
    7 years ago
    Favorite Answer

    I computed the determinants

    If there's a quicker method, let me know :)

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  • Jacob
    7 years ago

    Not equal by observe it. Right top is 1 1 1.

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