Question

a.-12
b.-14
c.-16
d.-15
e.-13​

Answer 1

Respuesta:

La diferencia es 15

Explicación paso a paso:

Media geométrica:

$\sqrt{ab}$ = 4

ab = $4^{2}$

ab = 16

Media armónica:

$\frac{2}{\frac{1}{a}+\frac{1}{b}}$ = $\frac{32}{17}$

⇒ $\frac{2}{\frac{b+a}{ab}} = \frac{32}{17}$

$\frac{2ab}{a+b} = \frac{32}{17}$

$\frac{2(16)}{a+b} = \frac{32}{17}$

$\frac{32}{a+b} =\frac{32}{17}$

a+b=17

Entonces:

ab = 16

a+b = 17

⇒ a=16 b=1

∴a - b = 16 - 1 = 15