Please help!

Q1-5

1

Use the given vectors to find v . w and v . v. v = 5i - 2j, w= - 4i -j V . W= (Simplify your answer.)Given v = 2i - j and w = 2i + 3j, find the angle between v and w. What is the angle between v and w? (Type your answer in degrees. Do not round until the final answer. Then round to the nearest tenth as needed.)Given v= - 8i - 5j and w = 3i - j, find the angle between v and w. What is the angle between v and w? (Type your answer in degrees. Do not round until the final answer. Then round to the nearest tenth as needed.)