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[" The vector "vec boldsymbol P=boldsymb...

[" The vector "vec boldsymbol P=boldsymbol ahat boldsymbol i+boldsymbol ahat boldsymbol j+3hat boldsymbol k" and "vec boldsymbol Q=boldsymbol ahat i-2hat boldsymbol j-hat boldsymbol k" are perpendicular to each "],[" other.The positive value of "boldsymbol a" is "]

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