korkmazserkan 00:09 16 Mar 2012 #1
Faruk 01:09 16 Mar 2012 #2
2)
sin12+sin892=1
sin22+sin882=1
sin32+sin872=1
.
.
.
sin442+sin462=1
+sin452=44.1+1/2= 89/2
tan1.tan89=1
tan2.tan88=1
tan3.tan87=1
.
.
.
tan44.tan46=1
.tan45=1.1= 1
(89/2)/1= 89/2
ayhaneva 02:03 16 Mar 2012 #3