Form a strong inductive conclusion for the sequence of numbers 3,6,11,20,… by observing the numbers and its pattern. Hence, find the 6th number for the sequence of numbers. SP 3.2.6
Q. Form a strong inductive conclusion for the sequence of numbers 3,6,11,20,… by observing the numbers and its pattern. Hence, find the 6th number for the sequence of numbers. SP 3.2.6
Observe Pattern: We need to observe the pattern in the sequence to form an inductive conclusion. Let's look at the differences between consecutive terms:6−3=311−6=520−11=9It seems that the differences themselves are increasing. To confirm the pattern, let's find the differences between these differences:5−3=29−5=4The second set of differences are increasing by 2 each time. This suggests that the sequence is formed by adding an increasing odd number to the previous term.
Find 5th Term: Let's continue the pattern to find the 5th term. The last difference we had was 9, so the next difference should be 9+2=11. Now, we add this difference to the 4th term to find the 5th term:20+11=31So, the 5th term is 31.
Find 6th Term: Now, we need to find the 6th term. The next difference will be 11+2=13. We add this difference to the 5th term to find the 6th term:31+13=44So, the 6th term is 44.
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