Compute the dot product for the equation, Mathematics

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Compute the dot product for each of the subsequent equation

 (a) v→ = 5i→ - 8j→ , w→ = i→ + 2j→

 (b) a→ = (0, 3, -7) , b→ = (2, 3,1)

Solution

(a) v→ • w→ = 5 -16 = -11

(b)  a→ • b→ = 0 + 9 = 2

Not much more to do with these other than use the formula.


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