Question

lim x approaches a (A^3-X^3)/(A-X)

Answer 1

use a^3-b^3= (a-b) (a^2+ab+b^2)

Answer 2

factor the numerator (difference of cubes)... simplify, then to find the limit just do a direct substitution.

Answer 3

and simplify the numerator to cancel common terms with denominator

Answer 4

I get 3a^2.Just wanted to check my answer

Answer 5

can you see if you get the same result

Answer 6

correct

Answer 7

Thanks one more question
Describe the influence of the three parameters, A, k, and n, on the shape of the graph of the Hill function y=(AX^n)/(x^n+k^n)