This one is very tough, but tests whether you realize that:
1) OP = OQ. and
2) If you drew a line straight down from P to the x-axis, you would form a triangle of base 1 and height root(3), so it will be a 30-60-90 triangle.
The angle measures are key because from them you can deduce a lot about s and t. it's tough to explain without drawings but the answer is B.
Have a look at a detailed solution, including a video solution: this is GMATprep question 1082. Set topic='Geometry, Coordinate' and difficulty='700+' in the drill generator to practice similar questions.
-Patrick
Geometry DS
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Patrick_GMATFix
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The attached figure shows why s = 1.
Anytime you see Root3, you should think: 30-60-90 triangle.
Hope this helps!
Anytime you see Root3, you should think: 30-60-90 triangle.
Hope this helps!
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selango
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After every 90 degrees the co-ordinates will get inverted with the sign assigned according to the quadrant in which the point lies.
The co-ordinates is (-V3,1).After 90 degree it will become (1,V3)[Note it is in first quadrant,so both x and y are positive]
The co-ordinates is (-V3,1).After 90 degree it will become (1,V3)[Note it is in first quadrant,so both x and y are positive]
--Anand--
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Patrick_GMATFix
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Nice tip Selango. Thank you
- Check out my site: GMATFix.com
- To prep my students I use this tool >> (screenshots, video)
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Video solution is very helpful!Patrick_GMATFix wrote:Have a look at a detailed solution, including a video solution: this is GMATprep question 1082. Set topic='Geometry, Coordinate' and difficulty='700+' in the drill generator to practice similar questions.
-Patrick
Thank you guys for your help
