In a standard biquadratic equation $a x^{5} + b x^{4} + c x^{3} + d x^{2} + e x + f = 0$ , what is the product of roots?

\frac{- b}{a}

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\frac{c}{a}

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- \frac{f}{a}

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\frac{- e}{a}

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Solution

The correct option is C $- \frac{f}{a}$
product of roots
$\frac{(- 1)^{d e g r e e} (c o e f f i c i e n t o f c o n s t a n t)}{c o - e f f i c i e n t o f x^{5}} \Rightarrow - \frac{f}{a}$

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