Question

the first term of an ap is 2 and its common difference is Q find its 10th term

Answer 1

a = 2
and d = Q

so, a10 = a+9d = 2+9Q

Answer 2

tn =a+(n-1)d
where a is the first term
and d is the common difference
and tn is the n th term
so t10 = 2+(10-1) q
= 2+9q