Question

If the first term is 50 and common difference is -6, find the 11th term of the arithmetic sequence

Answer 1

Answer:

a=50

d=-6

T11=50+(11-1)-6

=50-60=-10

Answer 2

Answer:

$an = a + (n - 1)d \\ an = 50 + (11 - 1) \times (- 6) \\ = 50 \times 10 \times - 6 \\ = 50 \times - 60 \\ = - 10$