Q6 of 81 Page 153

Let us subtract from the sum of and and find value of subtraction.

Given: 5 + √2 + √7, - 5 + √7 and √7 + √2

Sum of – 5 + √7 and √7 + √2 is:


- 5 + √7 + √7 + √2


= - 5 + 2√7 + √2 ….(1)


subtract 5 + √2 + √7 from (1)


We get,


- 5 + 2√7 + √2-(5 + √2 + √7 )



= - 5 + 2√7 + √2-5-√2-√7


= - 10-√7


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