Calculus Examples

$lim_{x \to - \frac{π}{2}} \sec (x)$

Step 1

Change the two-sided limit into a left sided limit.

$lim_{x \to {(- \frac{π}{2})}^{-}} \sec (x)$

Step 2

As the $x$ values approach $- \frac{π}{2}$ from the left, the function values decrease without bound.

$- \infty$