Question

What is the sum of the first 20 natural numbers ? b) Write the 20 th term of the arithmetic sequence 1,3,5,-------- and find the sum of 20 terms of this sequence.

Answer 1

(a)1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19=190

answer is

190

(b)the 20th term is 29

and

the sum of 20 terms are 190

Answer 2

Step-by-step explanation:

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