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I only need help with Question #3. (a.)(b.)(c.)(d.) please Dot Product and Projections In Exercises 1-8, find a. vu, lv, lu b. the cosine of

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I only need help with Question #3. (a.)(b.)(c.)(d.) please

image text in transcribed
Dot Product and Projections In Exercises 1-8, find a. vu, lv, lu b. the cosine of the angle between v and u c. the scalar component of u in the direction of v d. the vector proj, u. 2i - 4j + V5k, u - - 21 + 4j -V5k 2. = (3/5)i + (4/5)k, u = 5i + 12j 3. V 10i +/11j - 2k, u = 3j + 4k

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