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AP EAMCET · Maths · Basic of Mathematics

For what values of \(m \in N\), the following divisibility \(x+y / x^m+y^m\) holds?

  1. A even numbers
  2. B odd numbers
  3. C all-natural numbers
  4. D only when \(m=1\)
Verified Solution

Answer & Solution

Correct Answer

(B) odd numbers

Step-by-step Solution

Detailed explanation

Value of \(m \in N\) for which \(x^m+y^m\) is divisible by \(x+y\). Let \(P(m)=x^m+y^m\) is divisible by \(x+y\). Let us consider \(m=1\). \(P(1): x+y\) is divisible by \(x+y ; \therefore P(1)\) is true \(\Rightarrow m=2 \Rightarrow P(2): x^2+y^2\) is divisible by \(x+y\) which…