2. List at least three signal words the professor uses in the video. How did he use the signal words?

Consider the series where in this problem you must attempt to use the ratio test to decide whether the series converges. compute enter the numerical value of the limit l if it converges, inf if it diverges to infinity, minf if it diverges to negative infinity, or div if it diverges but not to infinity or negative infinity.

Describe a data structures that supports the stack push and pop operations and a third operation findmin, which returns the smallest element in the data structure, all in o(1) worst-case time.

Peter is thinking of a number which isless than 50. the number has 9 factors. when he adds 4 to the number, itbecomes a multiple of 5. what is thenumber he is thinking of ?