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- It is an order arrangement of items whether the order must be strictly observed
Assume x, y and z be any of three items. Arrange these in all possible permutations
NB: The above 6 permutations are the maximum one can ever acquire in a situation whereas there are only 3 items however if the number of items exceeds 3 then determining the number of permutations by outlining as done above may be cumbersome. Thus we use a special formula to find out such permutations. The formula is specified below
The number of permutations of 'r' items taken from a sample of 'n' items may be given as nPr =(n!)/((n - r)! )
whereas; ! = factorial
i. 3P3 =(3!)/((3 - 3)! )
= (3 * 2 * 1) / )0! Note that 0! = 1
6/1 = 1
ii. 5P3 = (5!)/((5 - 3)! )
= (5 * 4 *3 * 2 * 1) / )1 * 2
iii. 7P5 = (7!)/((7 - 5)! )
= (7 * 6 *5 * 4 *3 * 2 * 1) / )1 * 2
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What are the ingredients of a Mathematical Model? What is a model?
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i dont now how to do it
if the sum of lengths of hypotenuse and a side of right triangle are given, prove the area of the triangle is maximum when angle between them is pi/3
all perimeter and area
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20 equations that equal 36
Ribbon is wrapped around a rectangular box that is 10 by 8 by 4 in. Using the example provided, calculate how much ribbon is needed to wrap the box. consider the amount of ribbon d
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