Wednesday, January 28, 2015

Limit of a sequence (Calculus 1)

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Why is the following statement True ? limn→+∞ an = L then limn→+∞ 1/n Σk=1n ak = L If you're using epsilon-delta definitions, h...

Integer of (1+x²)/abs(1-x²)

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If 1 - x 2  => 0 : int ( 1 + x 2  ) / | 1 - x 2  | dx = int ( 1 + x 2  ) / ( 1 - x 2  ) dx = int ( x 2  - 1 + 2 ) / ( 1 - x 2  ) d...

There are 10 spots in a parking lot arranged in a single row. Three cars are parked randomly but in such a way that no two cars are adjacent to each other. What is the probability that there are at least two empty spots between any two cars?

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You can view this as counting integer solutions. x1,x2,x3,x4 representing the spacing. x1 is the spots before the first car, x2 between the...

For the subject Becquerel(Bq) to disintegerate from 11.5Mbq to 4.6 MBq takes 8 hours. How much percent does it disintegerate per hours?And how big is it after a 24 hours if it starts from 11.5 MBq?

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Final = Initial*e rt 4.6 = 11.5e 8r 4.6/11.5 = 2/5 = e 8r ln(2/5) = ln(2) - ln(5) = 8r (ln(2) - ln(5))/8 = r ~ -11%/hour. To find...
Sunday, April 6, 2014

In the following pseudocode, the statement print questionCounter will be executed ____ times.

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num PARTS = 5 num QUESTIONS = 3 partCounter = 1 while partCounter

What is the value of names[4] in the following array? String[] names = {"Jeff", "Dan", "Sally", "Jill", "Allie"};

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Allie

What is the value of times[2][1] in the array that follows? double[][] times = { {23.0, 3.5}, {22.4, 3.6}, {21.3, 3.7} };

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3.7