3) What measure of the angle formed by the vectors u = (9,5,-3) and v = (-8,0,3)? Give your answer in degrees and round your answer to four decimal places?

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A: Consider the equation

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A: f(x) is an even function

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A: B=17.7°b=8.09a=8.87

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Q: ܐ3 ܠ ܕ ( S*

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A: To convert the polar coordinate  to Cartesian coordinates.

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A: Explaination of answer is as follows

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A: The figure

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A: The given graph is shown as,

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A: since you have posted multiple questions in this question which are not interlinked so i have solved…

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A: We will use the following formulas.

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A: To find the length of side  by using the Law of Cosines.

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