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If bar a=2 bar i+bar j-bar k, bar b=ba...

If `bar a=2 bar i+bar j-bar k, bar b=bar i+2bar j +2bar k ,bar c=bar i+bar j+2bar k and bar a xx (bar b xx bar c)=(1+alpha)bar i+beta(1+alpha)bar j+gamma(1+alpha)(1+beta) bar k` then

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