python

4. Write a function lowercase that has one argument: str list that is a list of non-empty strings. If at least one string in the list starts with a lower case letter, then the function should return the value True. If every string in the list does not start with a lower case letter, then the function should return the value False. (1%) 5. Write a function Leibniz sum that has one integer argument n and returns Leibniz sum(n)= 42k=o 2k+1. This su This sum is used to approxi- mate . Leibniz sum(1000) should return 3.140592653839794. (1%) []: def lowercase(str_list): determines if at least one string in the list starts with a lower case letter. # some test cases to try out print(lowercasel( "ABN", "Hello", "hi"])) # should print True print(lowercase ("Month", "Week"])) # should print False print (lowercasel ["123", "ABC" 1)) # should print False In (): Ndef Leibniz_sum(n): Write a function used to approximate pi.. # put your code for this function here #some test cases to try out print(Leibniz_sum(1)) should print 4.0 print(Leibniz sun(2)) + should print 2.666666666666667 print(Leibniz_sun(3)) should print 3.466666666666667 print(Leibniz_sun(1000)) should print 3.140592653839794