Sagot :
Answer:
using the formula :
an = a1 + (n-1)d
an = a1 + (n-1) d
a⁴⁰ = 7 +(40 -1 ) 3
a⁴⁰ = 7 +( 39 ) 3
a⁴⁰ = 7+ 117
a⁴⁰ = 124


Answer:
using the formula :
an = a1 + (n-1)d
an = a1 + (n-1) d
a⁴⁰ = 7 +(40 -1 ) 3
a⁴⁰ = 7 +( 39 ) 3
a⁴⁰ = 7+ 117
a⁴⁰ = 124