On the derivation of higher numbers Find the value of F (x) = LIM (n tends to infinity) x (1-x ^ 2n) / (1 + x ^ 2n)

On the derivation of higher numbers Find the value of F (x) = LIM (n tends to infinity) x (1-x ^ 2n) / (1 + x ^ 2n)

Extract x first and change it into f (x) = x * LIM (1-x ^ 2n) / (1 + x ^ 2n)
In the limit, the numerator and denominator are divided by x ^ 2n at the same time, and then we take the limit. The numerator limit is - 1, and the denominator limit is 1
So the whole limit is - 1 / 1 = - 1
Then, multiply by X outside the limit
f(x)=-x.
Above~