Calculus Examples

$f (1) = \cos (x) - x^{3}$

Step 1

Replace the variable $x$ with $1$ in the expression.

$f (1) = \cos (1) - {(1)}^{3}$

Step 2

Simplify the result.

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Step 2.1

Simplify each term.

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Step 2.1.1

Evaluate $\cos (1)$ .

$f (1) = 0.99984769 - {(1)}^{3}$

Step 2.1.2

One to any power is one.

$f (1) = 0.99984769 - 1 \cdot 1$

Step 2.1.3

Multiply $- 1$ by $1$ .

$f (1) = 0.99984769 - 1$

Step 2.2

Subtract $1$ from $0.99984769$ .

$f (1) = - 0.0001523$

Step 2.3

The final answer is $- 0.0001523$ .

$- 0.0001523$

Step 3