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

G Prasad

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

Name a coordinate compound which is used asa medicine to inhiibit the growth of tumours other than cis-platin.
Cisplatin
Ranjini Kuruppath
My qualifications are M.s.c (maths) B.ed and I have 1 year experience in a cbse school. Is there any job for me?
Try giving digital ads
Tina
0 1
9
. The photoelectric effect establishes that __________. (Light travels in the form of inertial of quanta of energy, Light travels in the form of transverse waves, light travels in the form of longitudinal waves, light is a transverse electromagnetic wave)
light travels in the form of quanta of energy
Narendra Kumar
0 0
6
Like charges __________. (Attract each other, Repel Each other, Neither attract nor repel each other, None of these)
Repel each other
Narendra Kumar
0 0
6
What is the difference between amplitude and frequency?
Amplitude is the positive or negative peak value of a wave while frequency is the number of oscillations complete in 1 second.
Ravi
0 0
8

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

Ask a Question

Related Lessons

Applications Of Integral Calculus
Integral calculus has a lot of practical applications. It can be used to find the area, surface area, Volume for all geometrical shapes. Area= ∫ydx Volume= ∫Πy2dx Thus for finding area, volume...

Kumaresh Natarajan

0 0
0
Java 9 , the new beginning
Java 9 is here! A major feature release in the Java Platform Standard Edition is Java 9 Lets see what more it offers more than its previous versions Java platform module JEP 223 : New version...
G

Gcc

0 0
0
Integration Formulas
A

Amrtha S.

0 0
0
Introduction To Accounting: Part 1: Need For Accounting
Whenever we start doing business, a number of transactions take place. For example, if we start a business of say, a book store (i.e. we’ll be buying books from wholesalers and publishers, and selling...

Nishant Kumar

0 0
0
Financial Accounting
Accounting is the art of recording, classifying, summarising in a significant manner regarding money, transaction & events which are at least in part financial interpreting the result thereof. (AICPA...

Rajeshwari M.

3 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 Chennai
Class 12 Tuition in Hyderabad
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Pune
Class 12 Tuition in Lucknow
Class 12 Tuition in Noida
Class 12 Tuition in Gurgaon
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