Question

For an AP, a3 = 7, d = 4, sn = 740, find n and an



Q3 ​

Answer 1

Answer:

here is your first answer

Answer 2

a3 = 7

a+2d =7

a +2×4=7

a= _1

sñ = n/2 (a+ an )

740 = n/2 ( _1 + a+(n_1)d )

now plzz simply and solve