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( a+x - a-x )/( a+x + a-x ) ...
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The minute and hour hands of the clock meet at 12 o'clock What is the next time they meet? ...
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YOu have a coin which is biased say 75%chance of heads. How do use this coin for an unbiased decision! (can it be done?) ...
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find the domian of the function::: f (x) = [ log 0.3 (x2 - 1) / x2 - 3x + 2 ]1/2 ...
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What is the number of rectangles on a chess board? ...
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What is the number of non-congruent Rectangles in a chess board? ...
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find maximum and minimum values of f(x)=x/(1+xtanx) ...