Question

Find the 73rd term of the arithmetic sequence 18, 30, 42, ...

Answer 1

Answer:

882

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 18 and d = 30 - 18 = 12, thus

$a_{73}$ = 18 + (72 × 12) = 18 + 864 = 882