Question 86 (i)
The sum of first n natural numbers is given by 12n2+12n. Find
The sum of first 5 natural numbers.
Find the difference between the sum of first 100 natural numbers and the sum of even numbers from 1 to 100.
Pythagoras was a student of
(a) Euclid
(b) Thales
(c) Archimedes
(d) Bhaskara