Question

x/y =⅘ on quaring x²/y²=. by compendo and divendo x²+y²/x²-y²= -​

Answer 1

Answer:

$\frac{x}{y} = \frac{4}{5} \\ x = 4 \\ y = 5 \\ \\ \frac{ {x}^{2} }{ {y}^{2} } \\ = \frac{ {4}^{2} }{ {5}^{2} } \\ \boxed{ = \underline{\underline{ \frac{16}{25} }}} \\ \\ \frac{ {x}^{2} + {y}^{2} }{ {x}^{2} - {y}^{2} } \\ = \frac{16 + 25}{16 - 25} \\ \boxed{ = \underline{\underline{ \frac{41}{ - 9}}}}$