Question
Download Solution PDFযদি a, b, c সমান্তর প্রগতিতে থাকে তবে নীচের কোনটি সঠিক?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFঅনুসৃত ধারণা:
ধরি a, b, c… হলো আমাদের প্রগতি
যেহেতু আমরা জানি, সাধারণ অন্তর = b – a, c – b.
সমান্তর প্রগতিতে সাধারণ অন্তর সমান হয়
b – a = c – b
গণনা:
b - a = c - b
⇒ b + b = c + a
⇒ 2b = c + a
⇒ 2b = a + c
∴ a, b, c সমান্তর প্রগতিতে থাকলে 2b = a + c.
ধরি 1, 2, 3 সংখ্যাগুলি সমান্তর প্রগতিতে রয়েছে
কেবল একটি বিকল্পই সমীকরণের শর্ত পূরণ করবে।
2(2) = 1 + 3 সুতরাং 2b = a + c সঠিক বিকল্প
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