Show that:
(i)
(ii)
(i) Consider L.H.S. = = = (2-√3)
Consider R.H.S. = =
= (Rationalizing the denominator)
=
= 2 - √3
L.H.S. = R.H.S.
Hence, verified.
(ii) L.H.S. =
R.H.S. = cos 30° = √3/2