Question
Download Solution PDFযদি a2 - b2 = 88, a - b = 4 হয় তবে ab এর মান নির্ণয় করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
a 2 - b 2 = 88
a - b = 4
অনুসৃত সূত্র :
a 2 - b 2 = (a - b) (a + b)
গণনা:
a - b = 4 ----(1)
(a - b)(a + b) = 88
⇒ 4 × (a + b) = 88
⇒ a + b = 88/4
⇒ a + b = 22 ----(2)
সমীকরণ (1) এবং সমীকরণ (2) যুক্ত করে আমরা পাই
⇒ a - b + a + b = 4 + 22
2a = 26
⇒ a = 13
a এর মান সমীকরণ (2) এ বসিয়ে পাই
13 + b = 22
⇒ b = 9
ab এর মান = 13 × 9
⇒ ab = 117
Ab এর মান 117
Last updated on Jul 10, 2025
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