Category: Differential Calculus, Algebra
"Published in Vacaville, California, USA"
Evaluate
Solution:
To get the value of a given function, let's substitute the value of x to the above equation, we have
Since
the answer is (∞ - ∞)/∞ , then it is an Indeterminate Form which is not
accepted as a final answer in Mathematics. We cannot use the L'Hopital's Rule because the Indeterminate form is (∞ - ∞)/∞.
L'Hopital's Rule is applicable if the Indeterminate Form is either 0/0
or ∞/∞. We have to do something first in the given equation so that the
Indeterminate Form becomes 0/0 or ∞/∞.
Since the third degree polynomials in the numerator and denominator have no factors or cannot be factored, then we have to divide both sides of the fraction by the highest degree variable which is x3 as follows
Substitute the value of x to the above equation, we have
Therefore,