Question

The first and last term of an A. P are 1 and 11. If the sum of its term is 36 ​

Answer 1

Answer:

I assumed that your question asked to find n . although it wasn't asked I hope you are satisfied by my answer and rate me brainliest

Answer 2

Answer:

here it is

Step-by-step explanation:

a = 1 and l (last term) = 11 sum= 36

by the formula,

sn = n/2( a + l )

36 = n/2 ( 1 + 11 )

36 = n/2 ( 12 )

36 (2) = 12 n

72 = 12 n

n= 72/ 12

n = 6

so here number of terms (n) = 6