Question
Download Solution PDF(A - b) = 3 आणि ab = 70 असल्यास, (a3 - b3) चे मूल्य शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले:
(a – b) = 3 आणि ab = 70
सूत्र:
a3 - b 3 = (a - b) 3 + 3 ab(a - b)
हिशोब:
a3 – b3 = (a – b)3 + 3ab(a – b)
⇒ a3 – b3 = 33 + 3 × 70 × 3
⇒ a3 – b3 = 27 + 630
∴ a3 – b3 = 657
स्मार्ट युक्ती:
a = 10 आणि b = 7 घ्या [म्हणून (a -b) = 10 - 7 = 3आणि ab = 10 ×7 =70 ]
Last updated on Jul 10, 2025
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