Question

2 Calcular :
Si : a2 + b2 = 22
a-b=2
Calcula : p = raiz ab

Answer 1

Respuesta:

$a {}^{2} + b {}^{2} = 22 \\ a - b = 2 \\ (a - b) {}^{2} = 4 \\ a {}^{2} + b {}^{2} - 2ba = 4 \\ 22 - 2ab = 4 \\ - 2ab = 18 \\ - ba = 9 \\ ab = - 9$

raiz de a ×b

$\sqrt{ab} = \sqrt{ - 9} = 3i$

listo.