If S 1 , S 2 and S 3 be respectively the sums of n, 2n and 3n terms of a GP then, the…
Mathematics · JEE Main · NTA Exams — Progression and Series
If S1, S2 and S3 be respectively the sums of n, 2n and 3n terms of a GP then, the value of \(5_{1}\left[5_{3}-5_{2}\right]\) is
- \(\left(5_{2}-5_{1}\right)^{2}\)
- \(\left(5_{3}-5_{1}\right)^{2}\)
- \(\left[5_{3}-5_{2}\right]^{2}\)
- None of these
Answer
(B) (5_ 3 -5_ 1 )^ 2
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