A sequence is defined by the formula an = n2 – 2n + 1.
(a) Calculate the first 8 terms of the sequence.
(b) Calculate the first difference between the terms.
(c) Calculate the second difference between the terms.
(d) What can you say about the results you obtained?
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between the two 1’s there is one digit giving 1?1,
between the two 2’s there are two digits giving 2??2,
between the two 3’s there are three digits giving 3???3.
People say “twenty twenty” so do the 2 twenties mean – 20 thousands, 20 hundreds, 20 tens or 20 units?
You can be a creative mathematician, you can be someone who has […]
1 + 2018 = 2019. How many other ways can you put positive whole numbers into the boxes to make the sum correct?
Explain your answer.
Now answer the same question for the year you were born.
Can you explain it?
Does this work for very old people over the age of 99? Why or why not?
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