Question

若x=1-m的-n平方,y=1+m的n次方,请用含x的代数式表示y

Answer 1

x = 1 - m-ⁿ

y = 1 + mⁿ

m-ⁿ = 1 - x

mⁿ = y - 1

(1-x)(y-1)=1

y=(x-2)/(x-1)