Question

find the sum of first 50 terms of the A.P.1+5+9+13​

Answer 1

Step-by-step explanation:

this is the solution of that question

Answer 2

Step-by-step explanation:

a= 1

d= 5-1 = 4

n= 50(as we have to find 50th term)

Therefore by formula

an=a+(n-1)d

a50 = 1+(50-1)4

a50 = 1+(40)4

a50 = 1+160

a50 = 161

Answer:161

Hope it help !!