What is the limit as x approaches 1 of (x-1)(x+1) ?

The limit as x approaches 1 of (x-1)(x+1) is 0

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limit as x approaches 1 of (x-1)(x+1)

x \to 1 lim ((x - 1) (x + 1))

0

Solution steps

x \to 1 lim ((x - 1) (x + 1))

Plug in the value

x = 1

= (1 - 1) (1 + 1)

Simplify

= 0

\frac{d}{d x} (\frac{1}{cos ( x )})

\frac{d}{d x} ((\frac{x - 5}{2 x + 1})^{3})

in v erse l a pl a ce \frac{2 s}{2 s + 1}

\frac{d}{d x} (\frac{4}{x ^{3}} + 3 x)

d er i v a t i v e 6 cos (6 x)

What is the limit as x approaches 1 of (x-1)(x+1) ?
The limit as x approaches 1 of (x-1)(x+1) is 0