Evaluate the following limits. \(\displaystyle\lim_{{{\left({x},{y},{z}\right)}\rightarrow{\left({1},{1},{1}\right)}}}{\frac{{{x}^{{2}}+{x}{y}-{x}{z}-{y}{z}}}{{{x}-{z}}}}\)

encaderpwp

encaderpwp

Answered question

2022-03-30

Evaluate the following limits.
lim(x,y,z)(1,1,1)x2+xyxzyzxz

Answer & Explanation

pypberissootcu

pypberissootcu

Beginner2022-03-31Added 14 answers

We have to evaluate the limit of the function with three variable:
lim(x,y,z)(1,1,1)x2+xyxzyzxz
After putting value of limit we get that it is 00 form
We can solve this limit by laws of factorization.
Solving by factorization,
lim(x,y,z)(1,1,1)x2+xyxzyzxz=lim(x,y,z)(1,1,1)x2xz+xyyzxz
=lim(x,y,z)(1,1,1)x(xz)+y(xz)xz
=lim(x,y,z)(1,1,1)(xz)(x+y)(xz)
=lim(x,y,z)(1,1,1)(x+y)
=1+1
=2
Hence, value of given limit is 2.

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