Question

0,2,6,12,20 next term
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Answer 1

this shows addition of all even numbers

Step-by-step explanation:

hence the answer is 20 +10 is 30

Answer 2

Answer:

Find the 9th term of the sequence: 2,6,12,20,30.... Clearly required sequence Is double the one we have find the 9th term for, therefore 9th term of the required sequence is 2n(n+1)/2=n(n+1) . The Fibonacci sequence is an important sequence which is as follows: 1,1,2,3,5,8,13,21,........