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

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


Calculate the following quantity ............ b . (a-c) dot product

a - c = subtract the components of c from the components of c

a - c = (2, 0, -1) - (1, -1, -3) = (2 - 1, 0 - (-1), (-1) - (-3))

Dot product of b with that = multiply each component of b by the corresponding component of a - c. Then add those three numbers up.

Multiplication and addition of 1-digit numbers, no higher math required.