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February 1, 2015

Posted by **Logan** on Thursday, August 25, 2011 at 10:51pm.

(a) C = A + B

Cx =

Cy =

(b) C = A - B

Cx=

Cy=

- Vectors (Physics/Math) -
**MathMate**, Thursday, August 25, 2011 at 11:10pm(a) θ=25° φ=70°

Cx = Ax + Bx = |A|cos(θ) + |B|cos(φ)

=18cos(25)+24cos(70)

= 16.31 + 8.21

= 24.52

Cy = Ay + By = |A|sin(θ) + |B|sin(φ)

= 18sin(25)+24sin(70)

= 7.61 + 22.55

= 30.16

(b) similar to (a), but subtract instead of add.

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