5:34 a webwork.math.ucdavis.edu WeBWork MAA MATHEMATICAL ASSOCIATION OF AMERICA Logged in as xtgao. Log Out ( > webwork / mat21c-hui-summer1-2022 / section_12.3 / 2 Section 12.3: Problem 2 Previous Problem Problem List Next Problem (1 point) Suppose D = 7i + 4j - 18k and u = 7i + 7j + k. Compute the following: U . u = 10 = lul = The cosine of the angle between u and u is The scalar component of u in the direction of u is proju = Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have 15 attempts remaining