Explain the concept 3L4 Trigononn•trie Functions Of and Difference
In Lhis Section, we derive for Wignnm•netric of the
Its in this
COS
diffeænLQ of two and 'elated e p
The
We shall
now
called We that
y — Sin x Sin y
Consider Circle with Centre at the Otigi't be P "P land
P,opy nun is the P,opy Aim let angle P,ops.
Therefore. P I. P,. P, and P. will have the COOrdvnates P Ileos
x. Sin A).
P: [COS (x — Sin O) (Fig 3_14)_
Fig 3.14
Cmsider the P I OP; P 1 tuy (Why")
PIP. indP;P
, By ge:
[sin x —
• — (sin
y + sin' y -t 2sin
-2 2 y- sin sin
y) sin:
