Given v= -9i and w=-j  (a)find the dot product v x w; (b) find the angle between w and w; (c) state whether the vectors are parallel, orthogonal, or neither.

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A: This question is based on general solution of cos.

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A: A detailed solution is given below

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A: THE SOLUTION IS GIVEN BELOW

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A: topic - application of trigonometry tanθ=oppositeadjacent

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