W 3. Choose the best answer. Find the angle between the vectors to one decimal place. Use a calculator. u = cos 45 i + sin 45 j, v = cos 90 i + sin 90 j ON1.5 O N45.4' O N45.0' ~35.6' ~180.0' 4. Choose the best answer. Given: u = (3, -3), v = (5, 2), w = (6,4), c = 5 Find c(u . v) O 12 O 8 45 O 38 30 00:43:23