What is the limit as x approaches 3 of cos(pi/4 x) ?

The limit as x approaches 3 of cos(pi/4 x) is -(sqrt(2))/2

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limit as x approaches 3 of cos(pi/4 x)

x \to 3 lim (cos (\frac{π}{4} x))

- \frac{2}{2}

Decimal Notation

- 0.70710 \dots

Solution steps

x \to 3 lim (cos (\frac{π}{4} x))

Plug in the value

x = 3

= cos (\frac{π}{4} \cdot 3)

Simplify

cos (\frac{π}{4} \cdot 3) : - \frac{2}{2}

= - \frac{2}{2}

x \to a lim (\frac{4 ^{2} + 4}{x + 5})

\frac{\partial}{\partial z} (y e^{z})

\frac{d h}{d t} = - 2 k h

\frac{x ^{2}}{x + 1}

\frac{d}{d A} (0.0155 A^{3} - 0.372 A^{2} + 3.95 A + 1.21)

What is the limit as x approaches 3 of cos(pi/4 x) ?
The limit as x approaches 3 of cos(pi/4 x) is -(sqrt(2))/2