Question 1151040
What is the 8th term of -3, -9, -27, -81
<pre>Use the formula for a specific term of a G.P. (geometric progression/sequence): {{{highlight_green(matrix(1,3, a[n], "=", a[1]r^(n - 1)))}}}, where: {{{matrix(4,3, n, "=", 8, a[8], "is", UNKNOWN, a[1], "=", - 3, r, "=", 3)}}}
Substitute all values for all variables, and you should be able to determine {{{a[8]}}}, or the 8<sup>th</sup> term of the sequence.