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10. (18 pts) Let 5 = (4.2} and E; = {1. 3). (Work required only for parts d and e) la) Find 7 i} 3E

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10. (18 pts) Let 5 = (4.2} and E; = {1. 3). (Work required only for parts d and e) la) Find 7 i} 3E and state the result in component form. (b) State the exact magnitude (length) of ii and the exact magnitude of 11?. (c) State the dot product i} - E. ((1) Find projEL :7) in component form. Give exact values. Show work. (e) Determine the angle between ii and 11?. Show work. Write the exact angle as the arccosine of an appropriate number. Also, use a calculator to approximate the value of the angle, rounding the result to the nearest degree

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