What is the limit as x approaches 9 of cos((pix)/4) ?

The limit as x approaches 9 of cos((pix)/4) is (sqrt(2))/2

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limit as x approaches 9 of cos((pix)/4)

x \to 9 lim (cos (\frac{π x}{4}))

\frac{2}{2}

Decimal Notation

0.70710 \dots

Solution steps

x \to 9 lim (cos (\frac{π x}{4}))

Plug in the value

x = 9

= cos (\frac{π 9}{4})

Simplify

cos (\frac{π 9}{4}) : \frac{2}{2}

= \frac{2}{2}

y \to \infty lim (\frac{2 y ^{2} - 3 y + 5}{y ^{2} - 5 y + 2})

x \to 2 lim (x^{3} + 3 x^{2})

f (x) = 8 x^{2} - x^{3}

\int x^{3} x^{2} + 17 d x

\frac{d v}{d t} = k \cdot (275 - v), v (0) = 0

What is the limit as x approaches 9 of cos((pix)/4) ?
The limit as x approaches 9 of cos((pix)/4) is (sqrt(2))/2