3) Use the Ratio Test to determine the summability of the following sequences. In each case, write down the value of the limit of the absolute value of the ratio of successive terms of the sequence as a product or quotient "basic pieces": mua adt to sulav ot bail EM ort 11 a) a = 19 843434 k! c) b =13-k* (-7/9)* 9-- 4) Find the Open Interval of Convergence of the following sums.LL+ AQ Write down the value of the limit of the absolute value of the ratio of successive terms of the sequence being summed as a product or quotient "basic pieces": a) [17x b) 179k" (x-13)* k! 15.6 Matrix Addition We want to write a program that will check find the sum of two matrices. Your goal is to complete the code below to do the following: 1) Return "Undefined as the matrices are not the same size." if the matrices are not the same size. 2) Return the sum of the matrices if the matrices are the same size. Ex: If the input is: (1,2,0,0,0,2) (1,2; 1,2) the program would return: Undefined as the matrices are not the same size. Ex: If the input is: (1,2,0,0,0,2) (1,2,1; -1,2,0) the program would return: 2 4 1 -1 2 2 Note: The code will already be set up to accept a matrix with row entries separated by commas and rows separated by semicolons, i.e. (1,2,3,4,5,6) is the matrix 123 456 Note: The matrices are read in using list comprehension which is a compact way to do loops. It is also possible to read the matrices in using loops, loops and set comprehensions, and more depending on how you want the input to be formed.