Помогите пожалуйста)
а)arccos(-1) - 2 arcctg 0=
б)arcsin (-корень из 3/2) + arctg корень из 3=
в)arccos (sin(-п/4))=
г)arcsin(-1) + 2 arctg 0=
д)arccos (-1/2) - 2 arcctg корень из 3=
е)arccos ( tg(-п/4))=
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Verified answer
а)arccos(-1) - 2 arcctg 0 = π-2·(π/2) = π-π = 0; б)arcsin (-√3/2) + arctg √ 3 = (-π/3)+(π/3) = 0; в)arccos (sin(-п/4)) = arccos(-√2/2) = π-arccos(√2/2) = π-(π/4) = 3π/4;г)arcsin(-1) + 2 arctg 0 = (-π/2)+2·0 = (-π/2);
д)arccos (-1/2) - 2 arcctg √3= (π-arccos(1/2))-2·(π/6)=(π-(π/3))-(π/3)=π;
е)arccos ( tg(-п/4))=arccos(-1)=π.