not understanding two questions for the mathematics course exam
I don't understand how i am supposed to interpret the encoded equation from the arrays given. The answer was to find a_1-b_1. i don't understand how that conclusion was drawn from encoded equation. I would like clarification on that. 
The operation for question 12 ( s[0]+m[1] ) i didn't initially understand. but then i remembered briefly in the mathematic lesson that in python that the index loop always starts at 0 instead of 1 like in general math. Is that correct? i would like that clarified. 
Hey George,
Thank you for your question!
Regarding Question 11 from the exam, the task is encoded in the expression
You are given the matrices a, b, a_1, and b_1 above. The task is, therefore, to find the following symbols in the matrices and formulate the question.
a[0][0]
a[0][1]
a[1][0]
b[0][0]
b[1][0]
b[1][1]
b[0][1]
The plus signs concatenate the respective strings. Once you've found what the task is, you need to perform it.
Regarding Question 12 from the same exam, s[0] is indeed the first item while m[1] is the second. Once you locate them, you would need to find their sum.
Hope this clarifies the questions!
Kind regards,
365 Hristina