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ALGORITHM FOR DIVISION : If you ask a 10 or 1 1-year-old child to solve, say, 81 + 9, the chances are that she will correctly do it. But if you ask her to solve, say 72 + 3, there is a strong possibility that she will get it wrong. This is because; in this case she has to resort to an algorithm which she has blindly followed, without understanding what is going on or why it works.
When we met some children of Class 5 in a nearby primary school and gave them division problems to do, many of them came up with errors like Why did we get such solutions? This is because the children have not understood how and why the algorithm works. In fact, most adults don't understand this either. For instance, how many of us know why we move from left to right while dividing, and move from right to left while applying the other operations?, Let us consider this 'peculiarity'.
Hyperboloid of Two Sheets The equation which is given here is the equation of a hyperboloid of two sheets. - x 2 /a 2 - y 2 / b 2 + z 2 /c 2 = 1 Here is a diagram of
how do you do hard math!!!
sin (5pi/12)
A vessel in shape of a inverted cone is surmounted by a cylinder has a common radius of 7cm this was filled with liquid till it covered one third the height of the cylinder. If the
Solve for x: 4 log x = log (15 x 2 + 16) Solution: x 4 - 15 x 2 - 16 = 0 (x 2 + 1)(x 2 - 16) = 0 x = ± 4 But log x is
The law of cosines can only be applied to acute triangles. Is this true or false?
All the integrals below are understood in the sense of the Lebesgue. (1) Prove the following equality which we used in class without proof. As-sume that f integrable over [3; 3]
A standard deck of cards contains 52 cards. One card is selected at random. Determine a) The probability that the card is a 8 or an Ace? b) The probability that the card is
1,5,14,30,55 find the next three numbers and the rule
Exponential smoothing It is a weighted moving average technique, this is described by: New forecast = Old forecast + a (Latest Observation - Old forecast) Whereas a = Sm
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