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Question Number 126987 by sdfg last updated on 25/Dec/20

Answered by mr W last updated on 26/Dec/20

Q4  C=αA+βB  ∣C∣=(√(α^2 ∣A∣^2 +β^2 ∣B∣^2 +2αβ∣A∣∣B∣cos θ))

Q4C=αA+βBC∣=α2A2+β2B2+2αβA∣∣Bcosθ

Commented by mr W last updated on 26/Dec/20

Q5  a_x =∣A∣ cos θ  a_y =∣A∣ sin θ

Q5ax=∣Acosθay=∣Asinθ

Commented by sdfg last updated on 31/Dec/20

please more detail

pleasemoredetail

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