Tuesday, 5 March 2013

Siting_08_maths investigation



a) 2n and 2+n:
They are equal when n = 2. If n is lesser than 2, 2+n is larger. If n is larger than 2, 2n is larger.

b) 2n and n^2:
They are equal when n = 2. If n is lesser than 2, 2n is larger. If n is lesser than 2, n^2 is larger.

c) 2n+2 and 2(n+2):
- They are never equal. 2(n+2) is always larger than 2n+2 by 2.

d) 2n^2 and (2n)^2:
They are equal when n = 0. The number in negative is always the same as the number in positive. eg. (2*-5)^2 is 100 while (2*5)^2 is also 100. (2n)^2 is always larger than 2n^2.

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