Question

A1= -26. d= 200
a(n)= ?

Answer 1

a(n) = -26+(200n-200)

Explanation:

The formula for arithmetic series is "Tn=a+(n-1)d

Then,the elements in the formula are substituted with numbers.i.e Tn= -26+(n-1)200.

therefore,Tn= -26+(200n-200)...

Nb: This answer is Subjected to review, thanks.