Question
Download Solution PDFகோவை (3.7)3 - 3 × (3.7)2 × (0.7) + 3(3.7) × (0.7)2 - (0.7)3 எதற்குச் சமம்?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
(3.7)3 - 3 × (3.7)2 × (0.7) + 3(3.7) × (0.7)2 - (0.7)3
பயன்படுத்தப்படும் கருத்து:
(a – b)3 = a3 – b3 – 3a2b + 3ab2
கணக்கீடு:
கொடுக்கப்பட்ட கோவைக்கு, அதை (a - b)3 சூத்திரத்துடன் ஒப்பிட்டு ,
⇒ (3.7)3 - 3 × (3.7)2 × (0.7) + 3(3.7) × (0.7)2 - (0.7)3
⇒ a = 3.7 மற்றும் b = 0.7
⇒ (3.7)3 - 3 × (3.7)2 × (0.7) + 3(3.7) × (0.7)2 - (0.7)3 = (3.7 – 0.7)3
⇒ (3.7 – 0.7)3 = 33 = 27
எனவே, தேவையான மதிப்பு 27 ஆகும்.
Last updated on Jun 30, 2025
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