Question

If the common difference of an A.P.is-3and the 18th term is -5,then find the first term

Answer 1

Answer:

The first term is 46

Step-by-step explanation:

Given, d= -3

a18= -5; n= 18

we know that,

a +(n-1) d = an

=> a + 17d = a18

=> a + 17(-3)= -5

=> a - 51 = -5

=> a = 46

Answer 2

Hey mate see the attached image for your answer

♤♤●●●○○○THANK U■■