Lernkarten
Stelle um nach \(\overline{BC}\):
\(cos(\alpha)={~~\overline{AB}~~\over \overline{BC}}\)
\(\overline{BC}={~~\overline{AB}~~\over cos \alpha}\)
Berechne \(\alpha\):
\(cos(\alpha)={~~4~cm~~\over 5~cm}\)
\(\alpha=36,87°\)
In diesem Dreieck gilt:
\(1)\cos(\alpha)={a\over c}~~~2)\cos(\alpha)={b\over c}\)
\(3)\cos(\alpha)={a\over b}~~~4)\cos(\alpha)={c\over b}\)
1)
2)
3)
4)
In diesem Dreieck gilt:
\(1)\tan(\alpha)={a\over c}~~~2)\tan(\alpha)={b\over c}\)
\(3)\tan(\alpha)={a\over b}~~~4)\tan(\alpha)={b\over a}\)
1)
2)
3)
4)
In diesem Dreieck gilt:
\(1)\sin(\alpha)={a\over c}~~~2)\sin(\alpha)={b\over c}\)
\(3)\sin(\alpha)={b\over a}~~~4)\sin(\alpha)={a\over b}\)
1)
2)
3)
4)
In diesem Dreieck gilt:
\(1)\tan(\beta)={a\over b}~~~2)\tan(\beta)={b\over a}\)
\(3)\tan(\beta)={c\over a}~~~4)\tan(\beta)={b\over c}\)
1)
2)
3)
4)
In diesem Dreieck gilt:
\(1)\tan(\beta)={b\over a}~~~2)\sin(\beta)={c\over a}\)
\(3)\cos(\beta)={a\over c}~~~4)\tan(\alpha)={b\over a}\)
1)
2)
3)
4)
Stelle um nach \(\overline{AB}\):
\(cos(\alpha)={~~\overline{AB}~~\over \overline{BC}}\)
\(\overline{AB}={cos(\alpha)\cdot \overline{BC}}\)
