Learn math the Cuemath way: [ Ссылка ]

How do we find the sum of the first few natural numbers? We could do it manually if the sum isn't too big. But what if there are too many numbers to add, say a 100? We'll need to be smart then!

Let's explore a method to find such sums, and also arrive at a formula for the same.

The same logic can be applied to find the sum of any arithmetic arogression, i.e. the sum of a sequence of numbers, where every two neighboring numbers differ by the same quantity. For example, 2 + 5 + 8 + 11 + ... + 95 + 98.

#math #visualization #algebra #math #formula #sum #proof #education #learning

свернуть