The number of positive real roots for polynomial equation f(x) is given by________.
Degree of the equation
No. of times sign is changing in f(-x)
Total number of positive terms in f(x)
No. of times sign is changing in f(x)
The number of positive real roots for polynomial equation f(x) is given by No. of times sign is changing in f(x)
Find the number of complex roots for a 12th degree polynomial f(x) if there is no positive and negative real roots but f(0) = 0.