Question
Download Solution PDFx + y = 36 எனில், (x - 27)3 + (y - 9)3 ஐக் கண்டறியவும்.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
x + y = 36
பயன்படுத்தப்படும் சூத்திரம்:
a3 + b3 = (a + b)(a2 - ab + b2)
கணக்கீடு:
⇒ x + y = 36
⇒ x + y - 36 = 0 ................(1)
⇒ (x - 27) + (y - 9) = 0
(x - 27) = a மற்றும் y - 9 = b என்று கருதுவோம்.
a3 + b3 = (a + b)(a2 + b2 - ab) சூத்திரத்தைப் பயன்படுத்தி, a மற்றும் b இன் மதிப்பை சமன்பாட்டிற்குள் மாற்றவும்
.
⇒ (x - 27)3 + (y - 9)3 = ( x - 27 + y - 9)((x - 27)2 - (x - 27)(y - 9) + (y - 9) 2 )
⇒ (x - 27)3 + (y - 9)3 = ( x + y - 36)( (x - 27)2 - (x - 27) (y - 9) + (y - 9)2)
சமன்பாடு (1)இல் இருந்து x + y - 36 = 0 இன்மதிப்பை கணக்கிட.
⇒ (x - 27)3 + (y - 9)3 = ( 0)( (x - 27)2 - (x - 27) (y - 9) +(y - 9)2)
⇒ (x - 27)3 + (y - 9)3 = 0
∴ தேவையான மதிப்பு 0.
Last updated on Jun 13, 2025
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