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40 POINTS PLEASE ANSWER FAST!!!!

If
√(15) *
\alpha is a rational number what could be the value of
\alpha

User Xmar
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1 Answer

9 votes
9 votes
→ Rational number are those number which are expressible in form of p/q, where p and q are integers and q≠0.
→ If √15 is rational number then the value of n will be 4 because 4 is a perfect square it comes out of radical and becomes 3.
→ Now, 15 can be expressed as 2/1 which is in the form of p/q where p and q are integers and also q≠0.
User Senad
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