হলে, a + b + c + d এর মান নির্ণয় করুন।

  1. 58
  2. 68
  3. 70
  4. 74

Answer (Detailed Solution Below)

Option 2 : 68
Free
NDA 01/2025: English Subject Test
30 Qs. 120 Marks 30 Mins

Detailed Solution

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ধারণা:

  • , যেখানে F(x) হল f(x)-এর অনন্তরক সহগ।

গণনা:

প্রদত্ত:

সূত্র ব্যবহার করে,

জানা যায় যে, log a - log b = log a/b

--------(1)

∵ এটি প্রদত্ত যে, ----------(2)

(1) এবং (2) তুলনা করে পাই, a = 5, b = 34, c = 4, d = 25

⇒ a + b + c + d = 5 + 34 + 4 + 25 = 68

সুতরাং, সঠিক উত্তর হল বিকল্প 2

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