Given the vectors v and u, answer a through d. below. v = 101 + 11j-2k u = 3i +4j |v|= 15 (Simplify your answer. Type an exact answer, using radicals as needed.) Find the length of u. u = 5 (Simplify your answer. Type an exact answer, using radicals as needed.) b. Find the cosine of the angle between v and u cos= 74 75 (Simplify your answver, including any radicals Use integers or fractions for any numb c. Find the scalar component of u in the direction of vi 74 15 (Simplify your answer, including any radicals Use intecers of fractic d. Find the vector projection of u ortov That's incorrect. Although your answer equal to the correct answer, it is not in the correct form. Be sure to read any instructions given in the problem. If there are no special instructions, make sure your answer is fully simplified. numbers in the expression.) provua 225 225 740 814 148 225 (Type your answer in terms of i... and k Use integers or fractions for any numbers in the expression. Do not factor) OK X