Question

find limit

lim 4 /
x>5 x^2 -25

Answer 1

\[\lim_{x \rightarrow 5}\frac{ 4 }{ x ^{2}-25 }=\lim_{x \rightarrow 5}\frac{ 0 }{2x }=\frac{ 0 }{ 2\times5 }=\frac{ 0 }{10 }=0\]
(here i have differentiated the numerator & denominator.

Answer 2

Thank you!