Prove that:
To Prove:
Formula Used:
Proof:
LHS … (1)
Let
Therefore … (2)
From the figure,
… (3)
From (2) and (3),
… (3)
Now, let
Therefore … (4)
From the figure,
… (5)
From (4) and (5),
… (6)
Substituting (3) and (6) in (1), we get
LHS
= RHS
Therefore, LHS = RHS
Hence proved.