Question

The expression for $n^{th}$ term of an AP is

• A. dn + (a - d)
• B. dn + (a + d)
• C. d (n + 1) + a
• D. d (n - 1) - a

Answer 1

The correct option is A dn + (a - d)

The expression for $n^{th}$ term of an AP is
$a_n=a+(n-1)d$
$a_n=a+nd-d$
$a_n=dn+(a-d)$