A number which is greater than the sum of its factors other than itself.
For example,
10 is a defective number,
since the factors of 10 other than 10 are,
1,2, & 5,
and its sum 1+2+5=8 is less than 10 itself.
If the roots of the equation q 2 x 2 + p 2 x + r2 = 0 are the squares of the roots of the equation q x 2 + p x + r = 0 , are the squares ...
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