Question

Помогите найти производную функции y=1+x^2/1-x^2

Answer 1

$y = frac{2x times (1 - {x}^{2}) - (1 + {x}^{2}) times ( - 2x) }{ {(1 - {x}^{2}) }^{2} } \ y = frac{2x - {2x}^{3} + 2x + {2x}^{3} }{1 - 2x + {x}^{2} } \ y = frac{4x}{1 - 2x + {x}^{2} }$