# Calculate the following quantity? Let a= (2, 0,-1), b=(-1, 2,-1), c=(i - j -3k): Calculate the following?

Let a= (2, 0,-1), b=(-1, 2,-1), c=(i - j -3k):

Calculate the following quantity ............ I a - c I

Calculate the following quantity ............ I a - c I

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