Ответ:
Объяснение:
cos127=cos(90+37)=-sin37
tg172=tg(180-8)=-tg8
sin219=sin(180+39)=-sin39
ctg194=ctg(180+14)=ctg14
cos1,2π=cos(180+36)=-cos36=-cos36
sin1916°=sin(1800+116)=sin116=sin(90+26)=cos26
cos3000°=cos(2880+120)=cos120=cos(90+30)=-sin30
cos400=cos(360+40)=cos40
tg(-298°)=-tg298=-tg(270+28)=tg28
tg3,4π=tg612=tg(360+252)=tg252=tg(270-18)=tg18
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Ответ:
Объяснение:
cos127=cos(90+37)=-sin37
tg172=tg(180-8)=-tg8
sin219=sin(180+39)=-sin39
ctg194=ctg(180+14)=ctg14
cos1,2π=cos(180+36)=-cos36=-cos36
sin1916°=sin(1800+116)=sin116=sin(90+26)=cos26
cos3000°=cos(2880+120)=cos120=cos(90+30)=-sin30
cos400=cos(360+40)=cos40
tg(-298°)=-tg298=-tg(270+28)=tg28
tg3,4π=tg612=tg(360+252)=tg252=tg(270-18)=tg18