If and , find . Verify that (i) and are perpendicular to each other and (ii) and are perpendicular to each other.

Question

Philoid · Accepted Answer

Here,

We

have

⇒

Thus, substituting the values of ,

in equation (i) we get

⇒

If and are perpendicular to each other then,

⇒

i.e.,

And in the similar way, we have,

Hence proved.