Consider the function f (x) = x^3 - 8x^2 + 20x -13 The function f… - Vidyadip

MCQ

Consider the function $f (x) = x^3 - 8x^2 + 20x -13$
The function $f (x)$ defined for $R \rightarrow R$

A
is one one onto
✓
is many one onto
C
has $3$ real roots
D
is such that $f (x_1) · f(x_2) < 0$ where $x_1$ and $x_2 $ are the roots of $f ' (x) = 0$

✓

Answer

Correct option: B.

is many one onto

b

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