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Please send your answers quickly i need it The question is prove that root 5 +root 7 is irrational

Posted by Halak Dudiya 5 years, 6 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Khushboo Tiwari 5 years, 6 months ago

Let 5 +√7 be rational Then , 5+√7 = p/q Where p and q are co-prime number which has 1 as a common factor And they are integer 5+√7 =p/q √7 = p/q -5 √7 = (p - 5q )/ q (P- 5q ) /q is rational number but √7 is irrational and rational number is not equal to irrational Then 5+√7 is irrational Hence proved

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