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CBSE Class 9 Answered

  • evalute square root of blank end root5plus2square root of blank end root6 first sq root for allthe nos,                                                   here i splited 5 in to 2 and 3 since 3cross times2=6 and expression became square root of blank end root3+2+2square root of blank end root3cross times2 again first sq root s for all the nos.,then this expression becomes whole sq root ofsquare root of blank end root3+square root of blank end root2 using (a+b)whole square but since a+b s possitive addn s commutative it s possible when it s (a-b) whole sq i.d how we ll decide which no. has to be taken first
Asked by vijayalqakshmi muralidhar | 22 Jul, 2014, 01:14: PM
answered-by-expert Expert Answer

Y o u r space s o l u t i o n space i s space c o r r e c t. T h e space c o r r e c t space a n s w e r space i s space open parentheses square root of 3 plus square root of 2 close parentheses squared. space open parentheses square root of 3 minus square root of 2 close parentheses squared space i s space n o t space p o s s i b l e space i n space t h i s space c a s e space sin c e space i t space i s space g i v e n space plus 2 square root of 6 space i n space t h i s space c a s e space n o t space minus 2 square root of 6. A l s o space left parenthesis square root of 2 minus square root of 3 right parenthesis squared space a n d space open parentheses square root of 3 minus square root of 2 close parentheses squared space a r e space s a m e space sin c e space t h e y space a r e space i n s i d e space a space w h o l e space s q u a r e.

Answered by Prasenjit Paul | 22 Jul, 2014, 05:34: PM

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