Question

first term of the sequence is 1 and n+1 term is obtained by adding n+1 to nth term for all natural number n.find the six term of the sequence

Answer 1

Answer:

21

Step-by-step explanation:

tn+1 = tn+n+1

t1+1 = 1+1+1=3 = t2

t2+n+1 = 3+2+1 = 6 = t3

t3+n=1 = 6+3+1 = 10 = t4

t4+n+1 = 10+4+1 = 15 = t5

t5+n+1 = 15+5+1 = 21 = t6

[t6 = 21]

Answer 2

6th term is 21

Step-by-step explanation:

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