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P(a,b) is the midpoint of the line segme...

P(a,b) is the midpoint of the line segment between axes,Show that the equation of the line is `x/a+y/b=2`.

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OSWAAL PUBLICATION-SAMPLE PAPER 4-EXERCISE
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  12. 10^(2n-1)+1 is divisible by 11.

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  13. Find the number of ways of selecting 9 balls from 6 red balls, 5 white...

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