I77 =,dd +(I)  1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Romanmbolsnr1Courier New1Courier New1Courier New1Courier NewX(pi,-4.85),r#7r#@N ^V0q؛'@1Courier New segment (2pi,4.85)<-->(2pi,-4.85),r#7r#@N ^5@1Courier New (x,y) = (-t,-1/tan(t)); -1.2 <= t <= -0.2152900000000,r#7r#@=br@1Courier New P(x,y) = (t,1/tan(t)); 1 <= t <= 2.93 2.93000Q}(1P,r#7r#@q!H@1Courier New  (x,y) = (-t,-1/tan(t)); -3.6000 <= t <= -3.35000,r#7r#@ڝb@1Courier New (x,y) = (t,1/tan(t)); 3.40000 <= t <= 6.0700,r#7r#fffffff@2Mu@1Courier New x segment (-pi,4.85)<-->(-pi,-4.85),r#7r#fffffff@~:͔@1Courier New 0 (x,y) = (-t,-1/tan(t)); -7.6 <= t <= -6.49444000?,r#7r#fffffff@d/MI?1Courier New (x,y) = (t,1/tan(t)); 6.70000 <= t <= 8.200000,r#7r#fffffff@fI2%?1Courier New  (x,y) = (t,1/tan(t)); -2.65000 <= t <= -0.21000,r#7r#@pfffffYE3Q?1Courier New X  (x,y) = (-t,-1/tan(t)); 2.650000 <= t <= 2.93000,r#7r#@pfffffMo̺?1Courier New  y = 1/tan(x); -4.95 <= x <= -3.35,r#7r#@pfffffu)^1Courier New @@@h!@