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Toán Lớp 7: Chứng minh rằng $\frac{a+b}{a-b}$ = $\frac{c+a}{c-a}$ thì $a^{2}$ = bc

Home/ Toán Lớp 7: Chứng minh rằng $\frac{a+b}{a-b}$ = $\frac{c+a}{c-a}$ thì $a^{2}$ = bc

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