In the rectangular coordinate system, are the points (a,b) and (c,d) equidistant from the origin?
(1) a/b =c/d
(2) sq root a^2+sq root b^2=sq root c^2+sq root d^2
i know this data is discuss but i dont understand the answer is C
1 is clearly not sufficient becuase if a/b=c/d=1/1 the answer for the question in the text is no
but if a/b=c/d=1/2 or blah blah blah ( any number) the answer is yes
2 is not sufficient
1+2/ the question here is what will happen if a=b=c=d=1? the answer is still no
if a=-1b=1 c=1 d=-1 the answer is yes
i dont understand, can you guys please help me understand this
a data from gmat club
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https://www.beatthegmat.com/coordinate-p ... 86919.html discussed here.
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yeah i know it discussed but i still dont understandamit2k9 wrote:https://www.beatthegmat.com/coordinate-p ... 86919.html discussed here.
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Hi,
if a/b = c/d = 1
Consider (1,1) and (-1,-1). They are equidistant from origin. So, yes is also possible. You just can't say NO
Consider (1,2) and (2,4). They are not equidistant from origin.
Now, you can follow this:
https://www.beatthegmat.com/coordinate-t81057.html
This is another link. Not the link posted above. So, look into it.
You cannot say yes and no for certain in both the cases you mentioned1 is clearly not sufficient becuase if a/b=c/d=1/1 the answer for the question in the text is no
if a/b = c/d = 1
Consider (1,1) and (-1,-1). They are equidistant from origin. So, yes is also possible. You just can't say NO
if a/b = c/d = 1/2but if a/b=c/d=1/2 or blah blah blah ( any number) the answer is yes
Consider (1,2) and (2,4). They are not equidistant from origin.
Why is it NO? Both the points coincide. So they must be equidistant from origin.1+2/ the question here is what will happen if a=b=c=d=1? the answer is still no
Now, you can follow this:
https://www.beatthegmat.com/coordinate-t81057.html
This is another link. Not the link posted above. So, look into it.
Cheers!
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Things are not what they appear to be... nor are they otherwise