Wie vereinfacht man cot (x) * sec (x) cot(x)⋅sec(x)?
Antworten:
csc(x)csc(x)
Erläuterung:
[1]" "cot(x)*sec(x)[1] cot(x)⋅sec(x)
Quotient Identity: cot(x)=cos(x)/sin(x)cot(x)=cos(x)sin(x)
[2]" "=cos(x)/sin(x)*sec(x)[2] =cos(x)sin(x)⋅sec(x)
Gegenseitige Identität: sec(x)=1/cos(x)sec(x)=1cos(x)
[3]" "=cos(x)/sin(x)*1/cos(x)[3] =cos(x)sin(x)⋅1cos(x)
[4]" "=cancelcos(x)/(sin(x)cancelcos(x))
[5]" "=1/sin(x)
Gegenseitige Identität: 1/sin(x)=csc(x)
[6]" "=color(blue)(csc(x))