Which of the following are valid if/else statements in Python, assuming x and y are defined appropriately: a. if x < y: print('foo'); print('bar'); print('baz')
b. if x < y: print('foo')
elif y < x: print('bar')
else: print('baz')
c. if x < y: print('foo') else: print('bar')
d. if x < y: if x > 10: print('foo')

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?

Which excel file extension stores automated steps for repetitive tasks?

Write a program that keeps asking the user for new values to be added to a list until the user enters 'exit' ('exit' should not be added to the list). these values entered by the user are added to a list we call 'initial_list'. then write a function that takes this initial_list as input and returns another list with 3 copies of every value in the initial_list. finally, inside print out all of the values in the new list. for example: input: enter value to be added to list: a enter value to be added to list: b enter value to be added to list: c enter value to be added to list: exit output: a b c a b c a b c note how 'exit' is not added to the list. also, your program needs to be able to handle any variation of 'exit' such as 'exit', 'exit' etc. and treat them all as 'exit'.