Question

find the value 1/1+x^-m+1/1+x^m first to answer = brainliest answer

Answer 1

Answer:

L.H.S

1/[1-x^(m-n)] + 1/[1-x^(n-m)],

1/(1-x^m x x^(-n)] + 1/[1-x^n x x^(-m)],

x^n/(x^n - x^m) + x^m/(x^m - x^n),

x^n/(x^n - x^m) - x^m/(x^n - x^m),

now take the LCM here, we get

(x^n - x^m)/(x^n - x^m),

ܝ܂

hence

L.H.S=R.H.S