Question

Maths is fun!
1 + 3 = 22
1 + 3 + 5 = 32
1 + 3 + 5 + 7 = 42
Can you obtain the formula 1 + 3 +... + (2n - 1) = n??
Verify this formula for n = 6, 7, 8, ....​

Answer 1

Answer:

{1, 2, 3, 4, ...} is a very simple sequence (and it is an infinite sequence)

{20, 25, 30, 35, ...} is also an infinite sequence

{1, 3, 5, 7} is the sequence of the first 4 odd numbers (and is a finite sequence)

{4, 3, 2, 1} is 4 to 1 backwards

{1, 2, 4, 8, 16, 32, ...} is an infinite sequence where every term doubles

{a, b, c, d, e} is the sequence of the first 5 letters alphabetically

{f, r, e, d} is the sequence of letters in the name "fred"

{0, 1, 0, 1, 0, 1, ...} is the sequence of alternating 0s and 1s (yes they are in order, it is an alternating order in this case)

Step-by-step explanation:

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