If a, b, c are in H.P., then which one of the following is true
Mathematics · JEE Advanced · NTA Exams — Progression and Series
If a, b, c are in H.P., then which one of the following is true
- \(\frac{1}{b-a}+\frac{1}{b-c}=\frac{1}{b}\)
- \(\frac{\mathbb{x}}{a+c}=b\)
- \(\frac{\mathrm{b}+\mathrm{a}}{\mathrm{~b}-\mathrm{a}}+\frac{\mathrm{b}+\mathrm{c}}{\mathrm{~b}-\mathrm{c}}=1\)
- None
Answer
(D) None
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