Question

plese answer it is urgent I will mark brainliest​

Answer 1

answer to your question is 2:1

Answer 2

Answer:

the ratio of the first term to the common difference is 2 : 1

Step-by-step explanation:

let that A.P. first term is a and common difference is d.

we know that

sum of n terms of A.P. =

so acc. to question

so the ratio of the first term to the common difference is 2 : 1