In the rectangular coordinate system, are the points $$(a,b)$$ and $$(c,d)$$ equidistant from the origin?

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In the rectangular coordinate system, are the points $$(a,b)$$ and $$(c,d)$$ equidistant from the origin?

by Vincen » Wed Sep 15, 2021 8:42 am

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A

B

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In the rectangular coordinate system, are the points $$(a,b)$$ and $$(c,d)$$ equidistant from the origin?

(1) $$\dfrac{a}{b}=\dfrac{c}{d}$$

(2) $$\sqrt{a^2}+\sqrt{b^2}=\sqrt{c^2}+\sqrt{d^2}$$