Question

PLEASE ANSWER QUICKLY ​

Answer 1

Answer:

Step-by-step explanation:

let a-b = p

then b-a = -p

so, putting it in the equation

1/(1+ x^p) + 1/(1+ x^-p)

= (1+x^-p + 1+ x^p)/ (1+x^p)(1+x^-p)

=(2+x^p+x^-p)/(2+x^p+x^-p) .[As x^p.x^-p = 1]

= 1