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If x =root 7+root5 and y=root7-root5 find xy​

2 Answers

7 votes

final answer will be 2 because √a×√a= a

If x =root 7+root5 and y=root7-root5 find xy​-example-1
User Gadgetmo
by
3.5k points
1 vote

Explanation:

x=√7+√5, y=√7-√5

therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.

Hope this helps you.

User Hakan
by
4.0k points