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Problems based on Numbers Test 4
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© examsnet.com
Question : 9
Total: 40
The product of two natural numbers is 17. Then find the sum of the reciprocals of their squares.
289
1
289
289
290
290
289
Validate
Solution:
Let the two numbers are x and y;
then xy = 17 then only possible value of x and y are 17 and 1.
Then,
1
x
2
+
1
y
2
=
1
289
+
1
=
290
289
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