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If △=∣∣∣∣∣1xx21yy21zz2∣∣∣∣∣ and △1=∣∣∣∣111yzzxxyxyz∣∣∣∣, then the value of △1+△= |
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Answer» If △=∣∣ ∣ ∣∣1xx21yy21zz2∣∣ ∣ ∣∣ and △1=∣∣ ∣∣111yzzxxyxyz∣∣ ∣∣, then the value of △1+△= |
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