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Geometric Progression - Harmonic Progression - 1
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Harmonic progression

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Search me on Youtube for more videos.

U
Sir can u please share few same sort of question for practice.. 2nd method is awesome
Sameer Sardana
a year ago
Questions based on the same concept are discussed in this course. https://unacademy.com/course/complete-arithmetic-without-formulas-part-2-profit-and-loss/MMYMBV1I
Tn
sir do assuming no. a=1 and b=2 will able to solve last question??
Sk
sir how we know that in last q c d rule will apply
sir, in last question we can also put H as a HM of ab i.e 2ab/a+b.
Sir please its a request to add .. Permutation and Combination and probability .. Add Maximum question to it.. your inputs are desperately needed for the exam .. Sir we are waiting for your explanation.. I am immensely benefitted by your previous series Please make this series before NMAT exam sir...
1. SEQUENCE AND SERIES Class -12 (Ttarmonic Proqression)

2. Harmonic Progression A series av av an are said to be in Harmonic progression if 1 ' asare in A.P. noGe

3. Harmonic Mean when three numbers are in . ., the middle number is called Harmonic mean between the two number. a P rM

4. Relation between AM, GM and HM A.- a ph 2ab CA

5. If a, b, c and d are in . ., then ab + bc + cd- a. ad c. 3ad b. 2ad d. None

6. Live classes Recorded Classes Discussion Forum CAT PLUS COURSE V Facebook Group unacademy Practice Sheets Bharat Gupta Doubt clearing Visit : https://unacademy.com/plus

7. If a, b, c and d are in . ., then ab + bc + cd- a. ad c. 3ad b. 2ad d. None CA 12 12

8. The H.M. of two numbers is 4. If their A.M. A and G.M. G satisfy the relation 2AG2 27, then the numbers are a.2,6 c. 1, 3 b. 3, 6 d. None

9. The H.M. of two numbers is 4. If their A.M. A and G.M. G satisfy the relation 2AG2 27, then the numbers are a. 2, 6 c. 1, 3 b. 3, 6 d. None 4- eA 2. 12

10. If H be the Harmonic mean between a and b, then Hta +H+b a. 1 b.-1 c. 2 d. 2