Question

Select the correct option from the given alternatives:

If θ be the angle between any two vectors `bar"a"  "and"  bar"b"` then `|bar"a" . bar"b"| = |bar"a" xx bar"b"|`, when θ is equal to

Options

• 0

• `pi/4`

• `pi/2`

• `pi`

Answer 1

`pi/4`