-
YOU can help the next generation of students in the community! Share your trial papers and notes on our Notes & Resources page
geometric mean (1 Viewer)
- Thread starter enigma_1
- Start date
RealiseNothing
what is that?It is Cowpea
The AM is just the average of two terms. I'll do (d) as an example.
What you have to do for these questions is "set up" the expressions yourself. So let the first term be
and the 7th term be
. Then the average, or AM, of these two terms is:
+(x+6d)}{2} = \frac{2x+6d}{2} = x+3d)
And we know that
is just the 4th term.
What you have to do for these questions is "set up" the expressions yourself. So let the first term be
And we know that