Evaluer (complex solution)
\epsilon =\frac{ch}{\lambda }\text{ and }\frac{ch}{\lambda }=\frac{1989}{50000000000000000000}
Løs for λ
\lambda =\frac{50000000000000000000ch}{1989}
\epsilon =\frac{1989}{50000000000000000000}\text{ and }c\neq 0\text{ and }h\neq 0
Løs for ε
\epsilon =\frac{1989}{50000000000000000000}
h=\frac{1989\lambda }{50000000000000000000c}\text{ and }c\neq 0\text{ and }\lambda \neq 0
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