1+2+3+4..... Find the ans.. using this formula n(n+1)/2

Asked by Last Modified  

3 Answers

Follow 0
Answer

Please enter your answer

n (a + l) / 2 where n = number of terms, a = first term and l = last term or n (2a + (n-1) d) / 2 where a = 1st term, n = total number of terms and d = common difference
Comments

Engineer

yes that is correct as it is an arithmetic series but the answer will be infinity
Comments

Trainer

please refer: http://en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E2%8B%AF
Comments

View 1 more Answers

Related Questions

If energy is neither created nor destroyed then from where do we get energy?
It changes from one form of energy to other form or energy. Eg: like a ball falling from height have potential energy initially when at rest and when it keeps on falling it turns into kinetic energy
Profile Photo
Rakesh
0 0
View Comments5
I am Shubham and my question is that I am an engineering student in 1st sem, so tell me study planning for the 1st Sem.
Since you're 1st semeter, just enjoy your college life with at least spend two hours to your studies. You should make a habit of thinking everything practically, try to understand whatever you study rather...
Profile Photo
Shubhamparekh
What is the difference between Geometric mean and Harmonic mean?
Although the concept of an average seems simple, we continue to see many people using an incorrect method to calculate averages. We would be surprised if most people were familiar with the three different...
Profile Photo
Ramya

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Engineering Safety
For safety, speed and fuel efficiency, when designing recreation and transportation vehicles, engineers take into account all forces acting on the object. Engineers consider drag forces when they design...
Profile Photo

smart work with patience creates victory
In a village named ramapuram aa unemployee gopi lives. He is in search of job, roaming without food from a week. He decided to sell the wooden sticks by chopping the tree, he started chopping the trunk...
Profile Photo

English: Antonyms (Opposites)
Words that has opposite meanings are called as Antonyms. 1) East = West 2) North = South 3) Good = Bad 4) Poor = Rich 5) Day = Night 6) Happy = Sad 7) Long = Short 8) Easy = Difficult, hard 9)...
A

Atharva

2 0
View Comments0

How To Replace A Bad Habit With A Good One: Actionable Steps You Can Start Right Now
You want to change. You know you have to change. You don't know how to get started. Keep reading for next steps. Here you go: 1. Try replacing a bad one with a good one instead of focusing on eliminating...
Profile Photo

Recommended Articles

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Looking for Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you