(a) Use mathematical induction to prove that 2n< n! for every integer n with
n> 4. (Note that this inequality is false for n = 1,2 and 3.)
(b) A culture of bacteria doubles each 3 hours. If there are 200 bacteria
present at the beginning, how many bacteria will be after 24 hours? Show
(c) Counting your two parents, four grandparents, eight great grandparents
etc. how many direct ancestor? Use your Knowledge about sequences
and series to prove and show your work.
(d) For each of the following, say whether the series coverges or diverges.
Show your work.
iv. √n²+ n-n
(e) Show whether Ecoverges or diverges. Show your work
(f) A ball dropped from a height of 50 cm. Each time it bounces, it returns
to of its previous height. How far will the ball travel in the air before
coming to rest? Use your knowledge about sequences and series topic to
solve this question. See the following picture to help you. Show your work.
b₂ b3 b4
(g) Find the sums of the following series. Show your work