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Activities - progressions problems (view source)
Revision as of 04:00, 30 October 2019
, 04:00, 30 October 2019added Category:Progressions using HotCat
<math>\frac{2ab} {a + b}</math>= c<br>
<math>\frac{2ab} {a + b}</math>= c<br>
Hence 'c' is the harmonic between 'a' and 'b'.
Hence 'c' is the harmonic between 'a' and 'b'.
[[Category:Progressions]]