EC > GATE 2018 > Polynomials
Consider p(s)=s3+a2s2+a1s+a0 with all real coefficients. It is known that its derivative p'(s) has no real roots. The number of real roots of p(s) is
A
0
B
1
C
2
D
3

Correct : b

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polynomial roots EC GATE 2018 gate electrical engineering real roots polynomial derivative no real roots EC gate questions polynomial real roots GATE polynomial polynomial real roots EC

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