Math prob., is this right?

Question

Is this correct:

Find the Nth term - a1(subscr.)=5 d=2

aN(subscr.) = a1 + (n-1)d
a1= a1 + (1-1)2
5 = a1 + (0)2
5 = a1

aN = a1 + (n-1)d
= 5 + (n-1)2
= 5 + 2n -2
= 3 + 2n

^ is this the right answer?

Thank you!!!

Answer 1

Yes that looks correct. Well done.

Answer 2

Yes so long as n starts at 1 and not at 0.

Answer 3

I think you have the right answer.