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Maths Puzzle
Numerical Ability
a polynomial of degree 57 has 7 imaginary roots. what is the maximum no, of real roots it can have?
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- polynomial is of degree 57, so polynomial has total 57 roots
7 imaginary roots means total (7*2=14) imaginary roots as imaginary roots always occur in conjugate pair.
maximum no. of real roots = 57-14=43 - 11 years agoHelpfull: Yes(4) No(1)
- since maximum no. of real roots has been asked,it means the total no. of imaginary roots could be 8 also; so the answer would be 49. if minimum no. of real roots was asked, the answer would be 43.
- 11 years agoHelpfull: Yes(0) No(0)
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