Question

The value of 1/1+x^y+1/1+x^-y

Answer 1

Answer:

The answer is 1

$\frac{1}{1 + {x}^{y} } + \frac{1}{1 + {x}^{ - y} } = \frac{1}{1 + {x}^{y} } + \frac{1}{1 + \frac{1}{ {x}^{y} } } \\ = \frac{1}{1 + {x}^{y} } + \frac{ {x}^{y} }{1 + {x}^{y} } \\ = \frac{1 + {x}^{y} }{1 + {x}^{y} } \\ = 1$

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