The Value of (√6 + √10 - √21 - √35) × (√6 - √10 + √21 - √35) = ?

  • 127
  • 218
  • 340
  • 410
Answer:- 1
Explanation:-

Solution:
(√6 + √10 - √21 - √35) × (√6 - √10 + √21 - √35)
= {(√6 - √35) + (√10 - √21)} × {(√6 - √35) - (√10 - √21)}
= (√6 - √35)2 - (√10 - √21)2
= 6 + 35 - 2√210 - 10 - 21 + 2√210
= 41 - 31
= 10

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