Physics/Math

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Two vectors are given by
a = 3.3i + 6.5j, and
b = 2.5i + 4.9j.
Find
a) a·b =
b) (a + b)·b =
c) the component of a in the direction of b =

a) (3.3x2.5) + (6.6x4.9) =
b) (5.8x2.5) + (11.4x4.9)=
c) (a·b)/(magnitude of b)=

Great! I got it :)

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