Sin(-810)+cos(-900)+tg(-395)*ctg575sin(-2383)-sin(-2023)+cos(-485)-cos(-125)3tg930+sin1200-cos1410

[latex]sin(-810)+cos(-900)+tg(-395)*ctg575=[/latex] [latex]=-sin(360*2+90)+cos(360*2+180)-tg(180*2+35)*ctg(180*3+35)=[/latex] [latex]=-sin90+cos180-tg35*ctg35=-1-1-1=-3[/latex] [latex]sin(-2383)-sin(-2023)+cos(-485)-cos(-125)=[/latex] [latex]=-sin(360*6+223)+sin(360*5+223)+cos(360+125)-cos125=[/latex] [latex]=-sin223+sin223+cos125-cos125=0[/latex] [latex]3tg930+sin1200-cos1410=[/latex]  [latex]=3tg(180*5+30)+sin(360*3+120)-cos(360*4-30)=[/latex] [latex]=3tg30+sin120-cos(-30)=3* \frac{ \sqrt{3} }{3} +sin(90+30)-cos30=[/latex] [latex]\sqrt{3}+cos30-cos30=\sqrt{3}.[/latex] -