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Mathematics
Number Theory
Arithmetic Progression and Harmonic Progression
If a,b,c are in a.p. And a^2,b^2,c^2 are in h.p. And 2b^2=/-ac, then:
1 answer
b-a = c-b
1/a^2 - 1/b^2 = 1/b^2 - 1/c^2
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