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19 Jan 2010, 05:14
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Hi,
I have seen few Tangent, Secant formulas/rules in one of the gmat quant documents. However, I have never seen any questions which require knowledge of secants or tangents. Can anyone comment if mugging these up is any use ? Are they outside the scope of the gmat ?
I have seen few Tangent, Secant formulas/rules in one of the gmat quant documents. However, I have never seen any questions which require knowledge of secants or tangents. Can anyone comment if mugging these up is any use ? Are they outside the scope of the gmat ?
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19 Jan 2010, 08:52
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kaptain
I'd recommend understanding the core concepts, like the tangent is perpendicular to the radius or diameter of the circle, and the like. Similar things apply to secants as well. I'd also recommend learning the co-ordinate geometry concepts related to circles, such as equation of circle given coordinates of center and a radius, equations of lines for radius/tangent/secant etc etc.
Geometry on the G-day can rip anything apart, trust me, anything!!!!
19 Jan 2010, 10:35
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kaptain
Usually you can solve most questions in several ways and I would agree with you that you don't have to know these formulas. Moreover, Geometry is not a very common subject and you will see only 2-3 questions max. However, this is one of those bonus point things - you may want to know/be aware of them just in case as they may provide a shortcut that will save you a minute of time. Chances that you'll use them are low, but still there.
