**How to prove that ?**

**L.H.S =** **(1)**

But, we have according to Pythagoras Theorem.

Putting this in **(1)**, we get

**L.H.S= **

Therefore, we have

Similarly, we can prove that

And,

Follow this blog and be one step ahead.

by Jashan

**How to prove that ?**

**L.H.S =** **(1)**

But, we have according to Pythagoras Theorem.

Putting this in **(1)**, we get

**L.H.S= **

Therefore, we have

Similarly, we can prove that

And,