GIF89a(/,(/ڋ޼H扦Mzl /MĢ2IFS40Nhr;z MgVeSMx7FgghǦ'GepH&ǹi酷 2Jcڸyg**89;[X t)W( 9 t\v+P--9 b漍+ ?.ok~Hz{ `y1%D F2A^`)8ƍjrī$Kf2J%W|&^J0kΝ<{ 4СD=4RCl:}z͊ΧT9Fe֭\S+b#kVړX{a[5~= *=;V۷nH"X뻌wČbr 2&6,),LKq"fu,yڵ:Ӹ5#*2Z,\G9&\<"振2v̏t`K6 󻶟ݛ)嗵Szz2-^Atэv^x]TH% f*t>nGTiIXJxX:duGo9""(v2XN! [ Vq銐SwzD} B慙c-L[jST,bi)g# hC8vh /gK4K7G*y) 4jjbQ! MathType001 A=pr 2 secQsin 2 B/2(cos 2 Q-sin 2 B/2) 1-tan 2 Qtan 2 B/2 ;