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CocaColYA
@CocaColYA
July 2022
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найдите синус, косинус, тангенс и котангенс углов: A120; Б 135; В 150 и заполните таблицу.
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MrsVaderr
Verified answer
Sin120=sin(180-60)=sin60=√3/2
cos120=cos(180-60)=-cos60=-1/2
tg120=tg(180-60)=-tg60=-√3
ctg120=ctg(180-60)=-ctg60=-√3/3
sin135=sin(180-45)=sin45=√2/2
cos135=cos(180-45)=-cos45=-√2/2
tg135=tg(180-45)=-tg45=-1
ctg135=ctg(180-45)=-ctg45=-1
sin150=sin(180-30)=sin30=1/2
cos150=cos(180-30)=-cos30=-√3/2
tg150=tg(180-30)=-tg30=-√3/3
ctg150=ctg(180-30)=-ctg30=-√3
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Verified answer
Sin120=sin(180-60)=sin60=√3/2cos120=cos(180-60)=-cos60=-1/2
tg120=tg(180-60)=-tg60=-√3
ctg120=ctg(180-60)=-ctg60=-√3/3
sin135=sin(180-45)=sin45=√2/2
cos135=cos(180-45)=-cos45=-√2/2
tg135=tg(180-45)=-tg45=-1
ctg135=ctg(180-45)=-ctg45=-1
sin150=sin(180-30)=sin30=1/2
cos150=cos(180-30)=-cos30=-√3/2
tg150=tg(180-30)=-tg30=-√3/3
ctg150=ctg(180-30)=-ctg30=-√3