Question

Find the 52nd Term -3, 3, 9, 15, 21, ...

Answer 1

Answer:

$a = - 3 \\ d = 3 + 3 = 6 \\ \\ a52 = a + (n - 1)d \\ = ( - 3) + (52 - 1)6 \\ = ( - 3) + 51 \times 6 \\ = ( - 3) + 306 \\ = 303$