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Geeks on Mathematics.🀯πŸ’ͺ

Hello guys, this is Herbert. Well, for some days, i realized i wasnt posting Educational matters here but todayπŸ’ͺπŸ’ͺ, i will be posting some nice shortcuts and other maths concepts which can help boost your speed and confidence in maths. "Geeks on mathematics" is going to be a new initiative by me coming soon. In that group, we will be solving maths and science questions and share ideas too.βœŒοΈπŸ€—

Sum of (n) natural number; =n(n+1)/2 .....eg. Find the sum of the first 5 natural numbers..... =5(6)/2=15. Lets try it normally and see whether we will get this or not. 1+2+3+4+5=15✌️πŸ’ͺπŸ’ͺ. Its right.πŸ€—πŸ€—πŸ€—. Now let us go to the second one. Sum of n odd and even number. The formula for (n) odd number is; nΒ² or n x n. Lets find the sum of the first 5 odd numbers. 5Β²=25. Wow, this was damn fast right.πŸ’ͺ. Okay lets use the counting method. 1+3+5+7+9=25 😍😍. Maths made so easy😁😁😁. Now lets go to the even numbers. The formula is n(n+1) . Eg. Find the sum of the first 10 even numbers. Without counting the numbers you can solve it within 2 secondsπŸ˜πŸ˜πŸ‘πŸ’ͺ. 10(10+1) = 110. Cool right. This is very fast. Now lets use normal method. 2+4+6+8+10+12+14+16+18+20= 110πŸ’˜. In my next article, i will be writing about; The sum of the square of the first n natural numbers. Sum of squares of the first n odd and even numbers. I hope you liked this article. Please dont forget to suscribe to me for more and also give me a thumbs up tooπŸ€—πŸ€—. # Maths made easy Be inspired.🌻🌻.

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