C expression, we can use the sum function in python. For e, the command.
sum(x**2 for x in range (1,101))
e sum of the squares of the first hundred natural numbers.
1) Find the sum of the first 25 terms of each of the arithmetic sequenc
below.
1) 11, 22, 33, ii) 12, 23, 34, iii) 21, 32, 43,
iv) 19, 28, 37, .. v) 1, 6, 11,​