Question
Download Solution PDFx-এর কোন সম্ভাব্য মানের জন্য - 2/7, x, - 7/2 সংখ্যাগুলি একটি গুণোত্তর প্রগতিতে রয়েছে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFঅনুসৃত ধারণা :
যদি a, b এবং c গুণোত্তর প্রগতিতে থাকে তাহলে b2 = ac
গণনা :
প্রদত্ত: - 2/7, x, - 7/2 সংখ্যাগুলি গুণোত্তর প্রগতিতে রয়েছে।
আমরা জানি যে, যদি a, b এবং c গুণোত্তর প্রগতিতে থাকে তাহলে b2 = ac
এখানে, a = - 2/7, b = x এবং c = - 7/2
⇒ x2 = (-2/7) × (-7/2) = 1
⇒ x = ± 1
সুতরাং, সঠিক বিকল্প হল 3
Last updated on May 31, 2025
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