If 2cosα=x+(1/x) and 2cosβ=y+(1/y), show that xmyn-ynxm=2isin(mα-nβ)

If 2cosα=x+(1/x) and 2cosβ=y+(1/y), show that $\frac{x^{m}}{y^{n}} - \frac{y^{n}}{x^{m}}$ =2isin(mα-nβ)

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.