The sum of 3 numbers in AP is 15 & the sum of their squares is 3. Find the numbers.

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AP Calculus 2nd way: integral ∫ (3^(x+1)-7^(x-1))/21^x dx

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prob stat: 1st/2 parts. One sample has a mean of M=6 &

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trig integral ∫1/(sin(ax) cos(ax)) dx

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Find the expected value & the variance of a geometric r.v. X

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IIT-1995 2nd way integral ∫x^5/(1+x^3) dx

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