1.

the vectorIf A-. A cos θ i + Aperpendicular to A is given by,(1) Bcos θ i-Bsin θ J(2) B sin θ 1-B cos θ jsin θ j, then(4)Bsín θ 1 + B cosθ J

Answer»

For a perpendicular vector.. the dot product should be 0.

so only option is 2.

as dot product is. (Acos∅)(Bsin∅) -(Asin∅)(Bcos∅) = ABsin∅cos∅ -ABsin∅cos∅ = 0



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