Vector a = 4i + 5jVector b = 3i + 6jFind the dot product.

2 answers:

8 0

Answer:

Step-by-step explanation:

a*b = 4*3 + 5*6 = 12 + 30 ( where i*i = j*j = 1)

∴ a*b = 42

5 0

Step-by-step explanation:

a · b = (4)(3) + (5)(6)

a · b = 12 + 30

a · b = 42

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