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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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  3. Prove without expansion that |a h+bgga b+c h bf+b afh b+b c af+b cc bg...

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  4. If alpha,beta "and" gamma are real number without expanding at any sta...

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