In Exercises 27–30, let v = i - 5j and w = -2i + 7j. Find each specified vector or scalar.

w - v

In Exercises 21–38, let u = 2i - 5j, v = -3i + 7j, and w = -i - 6j. Find each specified vector or scalar.

-4w

In Exercises 27–30, let v = i - 5j and w = -2i + 7j. Find each specified vector or scalar.

||-2v||

In Exercises 21–38, let u = 2i - 5j, v = -3i + 7j, and w = -i - 6j. Find each specified vector or scalar.

3w + 2v

In Exercises 21–38, let u = 2i - 5j, v = -3i + 7j, and w = -i - 6j. Find each specified vector or scalar.

3v - 4w

In Exercises 21–38, let u = 2i - 5j, v = -3i + 7j, and w = -i - 6j. Find each specified vector or scalar.

||2u||

In Exercises 21–38, let u = 2i - 5j, v = -3i + 7j, and w = -i - 6j. Find each specified vector or scalar.

||w - u||

In Exercises 39–46, find the unit vector that has the same direction as the vector v.

v = 6i