1)root 7-root2 /root 7+root2 =
Answers
Answered by
1
Answer:
7-√2+√14
---------------
√7
Answered by
2
Step-by-step explanation:
(9-2√14)/5.
formulas used:
(a-b)^2 = a^2+b^2-2ab
(a+b)(a-b)= a^2-b^2
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