-B,O,B

This is our final BOB for this course... Our last unit, Sequences, has concluded. We are now going to prepare for our last test.

I found this unit very cool because I learned a lot about sequences... We learned the formula for finding the "nth" term of the given arithmetic sequence to be...

tn = t1 + (n-1)d

And for the geometric sequence...

tn = t1 (r)^n-1

We also learned how to calculate the sum of a given arithmetic sequence. Instead of adding all the terms, we could simply use this formula...

Sn = (n/2) (2t1 + (n - 1)d)

For a geometric series...

Sn = t1 (1 - r^n)/(1 - r)

I hope everyone will do their very best... Remember, its our LAST chance to improve our term mark...