Harmonic Mean
Harmonic Mean
The harmonic mean of n numbers is the reciprocal of the arithmetic mean of the reciprocals of these n numbers.
The harmonic mean can be derived using the concept of arithmetic mean.
If a, b and c are in HP, b is the harmonic mean of a and c
The reciprocals of a, b and c are in AP
As we know than the difference of the two consecutive numbers in an AP is the same. So
Hence, the harmonic mean for two numbers is given by
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About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
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Om Umang
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Archit Segal
7thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
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Eshan Arora
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Hiya Gupta
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Shivam Rana
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Manish Kumar
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
