Question
Download Solution PDFযদি a, b, c থাকে AP তে, তাহলে 3a , 3b , 3c কোথায় থাকে ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFa, b, c আছে AP তে
⇒ b - a = c - b ⇒ 2b = a + c---(1)
যদি a, b, c থাকে GP তে তাহলে \(b = \sqrt{a\times c}\)
⇒ \({3^b} = \sqrt {{3^a} \times {3^c}} \)
উভয় পক্ষকে বর্গ করে আমরা পাই
⇒ \({3^{2b}} = {3^{a + c}}\) ⇒ 2b = a + c -----(2)
(1) এবং (2) থেকে আমরা পাই
ক্রমটি হল \({3^a},\;{3^b},\;{3^c}\) আছে GP তে
Last updated on May 26, 2025
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