What is the limit as x approaches 6-of sec((pix)/4) ?

The limit as x approaches 6-of sec((pix)/4) is -infinity

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limit as x approaches 6-of sec((pix)/4)

x \to 6 - lim (sec (\frac{π x}{4}))

- \infty

Solution steps

x \to 6 - lim (sec (\frac{π x}{4}))

Express with sin, cos

= x \to 6 - lim (\frac{1}{cos ( \frac{π x}{4} )})

For

x

approaching

6

from the left

, x < 6 \Rightarrow cos (\frac{π x}{4}) < 0

The denominator is a negative quantity approaching 0 from the left

= - \infty

\frac{\partial}{\partial y} (2 x - 3 y)

\frac{\partial}{\partial y} (\frac{1}{x y})

y^{^{'}} = \frac{15 x}{y}

\int e^{x (t - 1)} d x

\frac{\partial}{\partial x} (arctan (x))

What is the limit as x approaches 6-of sec((pix)/4) ?
The limit as x approaches 6-of sec((pix)/4) is -infinity