Sin 3 π/4= Cos 3π/4= Tg 3π/4= Ctg 3π/4=

Question

Sin 3 π/4=
Cos 3π/4=
Tg 3π/4=
Ctg 3π/4=

Answer 1

Sin(π-π/4)=sinπ/4=√2/2
cos(π-π/4)=-cosπ/4=-√2/2
tg(π-π/4)=-tgπ/4=-1
ctg(π-π/4)=-ctgπ/4=-1

Comments

А разве не так все написано? Зачем дублировать?

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XD