Which of these functions below could be defined by a cubic equation?
2 answers:
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Take the numerator of the fraction and factor it out.
Your fraction should now look like this:
Because (x+4) is present in both the numerator and denominator, you can cross it out. You should be left with only (x-1) in the numerator.
x cannot equal -4, as if it is inputted in the denominator, -4 + 4 would equal 0. Dividing by 0 is impossible.
Your fraction should now look like this:
Because (x+4) is present in both the numerator and denominator, you can cross it out. You should be left with only (x-1) in the numerator.
x cannot equal -4, as if it is inputted in the denominator, -4 + 4 would equal 0. Dividing by 0 is impossible.
Answer:
modulus of complex number is
Step-by-step explanation:
z=x+iy is a complex numbers
the given complex number is 5+2i
the value of x is 5 and y is 2
the modulus of complex number formula is
modulus of complex number is
Since the limit becomes the undetermined form
it means that both polynomials have a root at . So, we can fact both numerator and denominator:
So, the fraction becomes
Now, as x approaches 1, you have no problems anymore: