UrbanPro
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

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

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

Math tutor with 25 plus years experience.

4, -8, 16 are not in GP.
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

Maths Teacher

Because AM as well GM between two numbers a and b lie between them and -8 does not lie between a and b
Comments
Dislike Bookmark

20 years of experience as Maths Tutor

4 -8 16 forms a GP with common ratio -2
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

Coaching for all students

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

Have the ability to motivate you and your hidden talent.

i am a faculty of business studies subject.
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

View 26 more Answers

Related Questions

An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon? A. 144º B. 150º C. 168º D. 180º
D
Srikanth
0 0
5
A and B toss a coin alternately till one of them gets a head and wins the game. if A starts first , find the probability that B will win the game.
U.k. Akshay posted a question in Class XI-XII Tuition (PUC) Question: A and B toss a coin alternately till one of them gets a head and wins the game. if A starts first , find the probability that B...
Kumar Upendra Akshay
2 0
6
What do u mean by pure rolling?
If an object such as a cylinder rolls without slipping on the surface (we call this pure rolling motion), a simple relationship exists between its rotational and translational motions.
Ravi Ranjan
Name a coordinate compound which is used asa medicine to inhiibit the growth of tumours other than cis-platin.
Cisplatin
Ranjini Kuruppath
How many zeroes are there in 2007!?
3
Deepak

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

Ask a Question

Related Lessons

FAQ: Consolidated Financial Statement Of The Company
i. Who will prepare the Consociated Financial Statement? As stated in Section 129 It is duty of the Parent Company (Management) to prepare the consolidated financial statement of the company and laid...

FR Prashanth Reddy

4 0
0
Probability
Probability is the possibility of an event to be occurred or happened. Probability is the ratio of the number of favorable events with the total number of events. An event which is definitely...
M

Mohit S.

1 0
0
Nothing is impossible
If u think any subject is tough to u it only u think actually it's not tough u become it tough if any other haven't learn that subject before and u tell him it is tough than it would be tough for him also...

Gagan Shakya

0 0
0
Packaging Of DNA - Class 12th Biology Chapter 6 - By entEd
This video covers the complete Packages Of DNA - Histone Variants, Nucleosome, Chromatin Structure & Function, Types of Chromosome.
T

TrentEd

0 0
0
Do and Dont's
-Learn By Examples, By relating it to real life things. You will retain it for long. -Dont ever wait for your teachers or tutors for starting something new topics. Make your own pace study before enyone...

Shashank Upadhyay

0 0
0

Recommended Articles

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 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 Radhe Shyam Burman, an MBA Tutor from...

Radhe Shyam is a highly skilled accounts and finance trainer with 8 years of experience in teaching. Accounting is challenging for many students and that’s where Radhe Shyam’s expertise comes into play. He helps his students not only in understanding the subject but also advises them on how to overcome the fear of accounts...

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 Lucknow
Class 12 Tuition in Jaipur
Class 12 Tuition in Noida
Online Tuition Class 12

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 © 2010-2025All Rights Reserved