4. Observe the following pattern:
1 = 1 = 13
3 +5=8 = 23
7 + 9 + 11= 27 = 33
13 + 15 + 17 + 19 = 64 =
43
Now express each of the following as the sum of the odd numbers by using the
pattern shown above:
(1) 53
(ii) 63
(iii) 73
(iv) 83
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Answer:
1 = 1 = 13 3 + 5 = 8 = 23 7 + 9 + 11 = 27 = 33 13 + 15 17 + 19 = 64 = 43 21 + 23 + 25 + 27 + 29 = 125 = 53Read more on Sarthaks.com - https://www.sarthaks.com/808247/observe-the-following-pattern-of-sums-of-odd-numbers
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