Calculus Examples

$f (\frac{π}{2}) = 3 \cos (x)$

Step 1

Replace the variable $x$ with $\frac{π}{2}$ in the expression.

$f (\frac{π}{2}) = 3 \cos (\frac{π}{2})$

Step 2

Simplify the result.

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Step 2.1

The exact value of $\cos (\frac{π}{2})$ is $0$ .

$f (\frac{π}{2}) = 3 \cdot 0$

Step 2.2

Multiply $3$ by $0$ .

$f (\frac{π}{2}) = 0$

Step 2.3

The final answer is $0$ .

$0$

Step 3