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GMAT_Gaurav_Quant_Notes

# GMAT_Gaurav_Quant_Notes - 1 A line doesnt terminate while a...

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1. A line doesnt terminate while a Line Segment Terminates   2. Area of Triangle = in-radius * semiperimeter 2. Beware of square values, x2 = 25 means x = +5 or -5   3. 0 is a multiple of 5, as it is for all the other numbers   4. A trianlge which is 45-45-90 has the sides in ratio of x:x:x sqrt2   5. A trianlge which is 60-30-90 has the sides in ratio of x:x sqrt 3:2x   6. For all the Venn diagram questions, beware of Only and Both, like A agrees to do  something, or A agrees to do only something.   7. 5 and 6 are the only integers which when squared or cubed will have same Units  Digit.   8. 0 is neither positive nor negative. It is an even integer   9. A prime number has exactly 2 factors, 1 and itself   10. X is said to be a factor of Y if Y = XN for some integer n. Y is said to be divisible  or multiple of X   11. |x+y| <= |x| + |y|   12. squaring a number which is greater than 1, or raising to a higher power results in  large number. Squaring a number between 0 and 1 results in smaller number.

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