Prove that:(i) 11+xa-b+11+xb-a=1(ii) 11+xb-a+xc-a+11+xa-b+xc-b+11+xb-c

1.	Prove that:(i) 11+xa-b+11+xb-a=1(ii) 11+xb-a+xc-a+11+xa-b+xc-b+11+xb-c+xa-c=1
Answer» Prove that: (i) $\frac{1}{1 + x^{a - b}} + \frac{1}{1 + x^{b - a}} = 1$ (ii) $\frac{1}{1 + x^{b - a} + x^{c - a}} + \frac{1}{1 + x^{a - b} + x^{c - b}} + \frac{1}{1 + x^{b - c} + x^{a - c}} = 1$

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