Question

What is the 51st term of the sequence `-7, 2, 11, 20`?

Answer 1

`a_51 = 443`

Explanation:

From the given sequence, we can deduce the following:

`a_1 = -7`
`d = 9 " the difference between the terms"`

`a_n = a_1 + (n-1)d`

For `n = 51`
`a_51 = -7 + 50 xx9`

`a_51 = 443`