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Question Number 77848 by jagoll last updated on 11/Jan/20

Commented by jagoll last updated on 11/Jan/20

$$dearsirW$$$$lookpicture$$$$correcta=\sqrt{b\times c}?$$

Commented by mr W last updated on 11/Jan/20

$$\frac{b-a}{b+a}=\frac{a-c}{a+c}$$$$ab-a^2+bc-ac=ab+a^2-bc-ac$$$$a^2=bc$$$$\Rightarrow a=\sqrt{bc}$$

Commented by jagoll last updated on 11/Jan/20

$$waw...thanksyousir$$

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