Find a + b, 9a + 7b, lal, and la - bl. (Simplify your

Last updated: 8/12/2022

Find a + b, 9a + 7b, lal, and la - bl. (Simplify your vectors completely.) a = 9i - 8j + 7k, b = 7i - 9k a + b 11 9a + 7b = |a| = la - bl =