The sequence is: cos(π/2), cos (π ), cos (3π/2), cos ( 2π ),...
or: 0,-1,0,1,0,-1,0,1,... Since cos (nπ/2) oscillates between -1 and 1 as n tends to infinity, this sequence is divergent (limit does not exist).
Answer: option a.
Step-by-step explanation:
To solve the given exercise nad write the expression as a single logarithm, you must keep on mind the following properties:

Therefore, by applying the properties shown above, you can rewrite the expression given, as following:

Then, the answer is the option a.
Answer:
213
Step-by-step explanation:
3131321
I think its 9 because 9 times 2 is 18 9 times 6 is 54 and 9 times 8 is 72