Prove without expansion that |a h+bgga b...

Prove without expansion that `|a h+bgga b+c h bf+b afh b+b c af+b cc bg+fc|=a|a h+bga h bf+b a h b af+b cgf|`

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VMC MODULES ENGLISH-MATRICES AND DETERMINANTS -LEVEL 2

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If alpha,beta,gamma are real numbers, then without expanding at any...
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Prove without expansion that |a h+bgga b+c h bf+b afh b+b c af+b cc bg...
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