4 4.
Etib tx to
=&x716
*24
*!
+8. In
4
X
( sinxtos x=1
Pittany=seex
ex fyra dx Sx= 232493 dx=25ec0 tonodo It cotx=csey
- (4 -
Naseco-4 seco tano do
= f*4 [secd+) tanodo (secou)
= ſztano-tanodo =2 Stone do=zfsecado-fzde
2sect to
X4
0
= 2tan 0-20 = &vx24
boood
2000000
0000000ooode
CHA SHIN
0