UrbanPro

Location Set your Location

Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 12 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > As we know that, single GM between two numbers a...
✕

Search in

As we know that, single GM between two numbers a and b will be +(root (a*b)), Could anybody tell me, why not -- (root (a*b)) While, 4 8 16 and 4 -8 16 both are in GP.

Asked by Last Modified  

28 Answers

Learn Class XI-XII Tuition (PUC)

Follow 0
Answer

Please enter your answer

we already replayed for this question Kindly check once
Comments
Dislike Bookmark

Tutor

There are two parts to your question. 1. Can a GM be negative. 2. Does the calculation follow from this formula which you have stated. Answer to the first part is yes. GM can be negative. Answer to the second part is no. We don't directly use the formula which you have used. We have to do something...
read more
There are two parts to your question. 1. Can a GM be negative. 2. Does the calculation follow from this formula which you have stated. Answer to the first part is yes. GM can be negative. Answer to the second part is no. We don't directly use the formula which you have used. We have to do something called as normalization. A good example of negative GM comes in investment sector. http://www.investopedia.com/ask/answers/06/geometricmean.asp. Check this site. for a better insight read less
Comments
Dislike Bookmark

Math tutor with 25 plus years experience.

4, -8, 16 are not in GP.
Comments
Dislike Bookmark

Coaching for all students

whenever we ask for a GM then we didn't consider Alternating series
Comments
Dislike Bookmark

Tutor

Hi bhaskar, G.M only applies to positive numbers.if u see the g.m of 4,8,16 its cuberoot of the three numbers.so if u take any one of these no.s as negative how can u take out the cube root.that will then give you an imaginary value.also u have written --(root(a*b).while if u write -8 as one of the...
read more
Hi bhaskar, G.M only applies to positive numbers.if u see the g.m of 4,8,16 its cuberoot of the three numbers.so if u take any one of these no.s as negative how can u take out the cube root.that will then give you an imaginary value.also u have written --(root(a*b).while if u write -8 as one of the number u need to put b=-8.i hope that explains.if any doubts please ask. read less
Comments
Dislike Bookmark

Chemistry Wizard/English Expert

http://www.jagranjosh.com/articles/arithmetic-progression-ap-geometric-gp-and-harmonic-progression-hp-cat-quantitative-aptitude-1337821417-1
Comments
Dislike Bookmark

In GP, series should be always in with common ratio. 4 , -8 , 16 cannot be in GP. GM will be always +( root (a*b))
Comments
Dislike Bookmark

B.E. in Electronics and Communication and MBA in Finance

very good question Bhaskar. The formula to calculate GM you mentioned above is only valid if both numbers are positive. There is a different way to calculate GM for numbers some negetive numbers as well as with zero. For class 12th std, GM calculation for the above mentioned method will be too complex...
read more
very good question Bhaskar. The formula to calculate GM you mentioned above is only valid if both numbers are positive. There is a different way to calculate GM for numbers some negetive numbers as well as with zero. For class 12th std, GM calculation for the above mentioned method will be too complex for you as it also requires application of functions in logarithms and solution method depends upon the number of variables you are looking at. (Different method for even and odd). I hope that solves you inquisitiveness. If you want to learn more about those methods you can write me a mail read less
Comments
Dislike Bookmark

Have the ability to motivate you and your hidden talent.

i am a faculty of business studies subject.
Comments
Dislike Bookmark

20 years of experience as Maths Tutor

4 -8 16 forms a GP with common ratio -2
Comments
Dislike Bookmark

View 26 more Answers

Related Questions

What is the unit of coefficient of friction?
The coefficient of friction is dimensionless (means it has no units) since it is a ratio of two similar quantities. Its purely a number
Mallikarjun
0 0
5
What should be the charges per month for maths of 11 & 12 th CBSE at baroda.
11 class for full course 10000-12000 Rs. 12 class for full course 12000-14000 Rs It also depend upon your experience .....
Er Megha Pandey
0 0
9
If the magnetic field is uniform, then the magnetic lines of forces are __________. (Curved, Parallel, Perpendicular, None of these)
Parallel and spaced uniformly
Narendra Kumar
0 0
6
What least number must be added to 1056, so that the sum is completely divisible by 23 ? A. 2 B. 3 C. 18 D. 21 E. None of these
2
Srikanth
0 0
9
Why does Mercurous ion peculiarly exist as a dimer instead of monomer like a Mercuric ion?
After years of speculation of the nature of the mercury (I) ion, I've come to the following conclusion. Mercury (I) is a dimer consisting of a mercury (II) ion and a neutral mercury atom. There are...
Abdur Rahman W.
1 1
6

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

Ask a Question

Related Lessons

Reconstitution Of Partnership Admission Of A Partner Important Questions
Unit 2: Reconstitution of partnership admission of a partner: On what occasions does the need for valuation of goodwill arise? Why is it necessary to revalue assets and liabilities at the time of...

Mahesh Kumar

0 0
0
Election And Democracy
In a developing society like India, elections play their own role in democracy, Their importance becomes greater because there is great illiteracy and simultaneously there are more than 27 crores of voters...

Debraj Paul

0 0
0
Its only about happiness.
Do more no of problems on each topic ,so that you can go ahead confidently. Get familiar with practical aspects of what you are going through.

Priyabrata Biswal

0 0
0
For Class 12 Chemistry - Enzyme B12.
The B12 or cobalamin coenzymes are complex macrocycles whose reactivity is associated with a unique cobalt-carbon bond. The two biologically active forms are MeCbl and AdoCbl and their closely related...

Nidhi T.

0 0
0
Qualifications and Appointment of Supreme Court Judges in India
The Supreme court Judges in India are appointed by the President on the advice of his Council of Ministers and in consultation with such persons as he deems fit. In the appointment of the Chief Justice,...
D

Deepa H.

1 0
0

Recommended Articles

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Find Class 12 Tuition near you
Class 12 Tuition in Delhi
Class 12 Tuition in Bangalore
Class 12 Tuition in Hyderabad
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Chennai
Class 12 Tuition in Pune
Class 12 Tuition in Jaipur
Class 12 Tuition in Lucknow
Class 12 Tuition in Noida

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2024All Rights Reserved