the dot product

Use the dot product to determine whether v and w are orthogonal.

29. v=3i , w= -4i

30. v=5i , w= -6i

31. v=3i , w= -4j

32. v=5i , w= -6j

find . Then decompose v into two vectors, and , where is parallel to w and is orthogonal to w.

33. v=3i – 2j , w= i – j

34. v=3i – 2j , w=2i + j