Question

If the nth term of an A.P is 2n - 1, then the sum of its first three terms is​

Answer 1

Answer:

first term = 2*1-1=1

second tern =2*2-1=3

third term =2*3-1=5

sum of all three terms =1+3+5=9

Answer 2

Answer:

first term = 2*1-1=1

second tern =2*2-1=3

third term =2*3-1=5

the sum of all three terms =1+3+5=9