The number of positive real roots for polynomial equation f(x) is given by________.

No. of times sign is changing in f(-x)

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Total number of positive terms in f(x)

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Degree of the equation

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No. of times sign is changing in f(x)

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Solution

The correct option is D
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)

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Let P, Q, R, S and T are five sets about the quadratic equation
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Q : All values of ‘a’ for which the product of roots of given quadratic equation is negative.
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S : All values of ‘a’ for which the roots of given quadratic are real.
T : All values of ‘a’ for which the given quadratic equation has complex roots.

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The number of positive real roots for polynomial equation f(x) is given by________.

The correct option is D 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)

The correct option is D
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)