Start learning →

Three numbers are in harmonic progression if and only if their reciprocals are in

Aarithmetic progression
Bgeometric progression
Charmonic progression
Dno fixed relation
Answer & Solution
Correct answer: A. arithmetic progression
A harmonic progression is defined by taking reciprocals and obtaining an arithmetic progression. **So if $a,b,c$ are in HP, then $\frac1a,\frac1b,\frac1c$ are in AP.**
Practise this question with Quill — AP Calculus AB →

Keep practising Unit 2: Differentiation and Fundamental Derivative Rules

Browse all Unit 2: Differentiation and Fundamental Derivative Rules questions for AP Calculus AB, or explore more Mathematics topics.

Start a Unit 2: Differentiation and Fundamental Derivative Rules lesson →