Question

1÷1+x^a-b+1÷1+x^b-a​

Answer 1

Answer:

sorry dont know

Step-by-step explanation:

Answer 2

Answer:

$\frac{1}{ 1 + {x}^{a - b} } + \frac{1}{ 1 + {x}^{b - a} } \\ = \frac{1}{1 + \frac{ {x}^{a} }{ {x}^{b} } } + \frac{1}{1 + \frac{ {x}^{b} }{ {x}^{a} } } \\ = \frac{ {x}^{b} }{ {x}^{b} + {x}^{a} } + \frac{ {x}^{a} }{ {x}^{b} + {x}^{a} } \\ = \frac{ {x}^{b} + {x}^{a} }{ {x}^{b} + {x}^{a} } \\ = 1$