Question

Find the 93rd term of the arithmetic sequence -11, -7, -3

Answer 1

357

Explanation:

hello :

note : the n th term of an arithmetic sequence is :

An =A1+(n-1)d ....a common difference is : d and A1 the first term

in this exercice : d = -3-(-7) =-7-(-11) = 4 A1 = -11

when : n =93 you have the 93rd term A93

so : A93 = -11 +(93-1)(4)

A93 = 357