For a geometric progression with positive terms

MATHEMATICS · Subjective · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

For a geometric progression with positive terms, it is given that log⁡10a2+log⁡10a5=5\log_{10} a_2 + \log_{10} a_5 = 5 and log⁡10a3+log⁡10a7=7\log_{10} a_3 + \log_{10} a_7 = 7. Determine the first term a1a_1.

Related theory

Browse the problem library