Calculus Examples

$lim_{x \to 0} x^{2} \sec (x^{2})$

Step 1

Split the limit using the Product of Limits Rule on the limit as $x$ approaches $0$ .

$lim_{x \to 0} x^{2} \cdot lim_{x \to 0} \sec (x^{2})$

Step 2

Move the exponent $2$ from $x^{2}$ outside the limit using the Limits Power Rule.

${(lim_{x \to 0} x)}^{2} \cdot lim_{x \to 0} \sec (x^{2})$

Step 3

Move the limit inside the trig function because secant is continuous.

${(lim_{x \to 0} x)}^{2} \cdot \sec (lim_{x \to 0} x^{2})$

Step 4

Move the exponent $2$ from $x^{2}$ outside the limit using the Limits Power Rule.

${(lim_{x \to 0} x)}^{2} \cdot \sec ({(lim_{x \to 0} x)}^{2})$

Step 5

Evaluate the limits by plugging in $0$ for all occurrences of $x$ .

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Step 5.1

Evaluate the limit of $x$ by plugging in $0$ for $x$ .

$0^{2} \cdot \sec ({(lim_{x \to 0} x)}^{2})$

Step 5.2

Evaluate the limit of $x$ by plugging in $0$ for $x$ .

$0^{2} \cdot \sec (0^{2})$

Step 6

Simplify the answer.

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Step 6.1

Raising $0$ to any positive power yields $0$ .

$0 \cdot \sec (0^{2})$

Step 6.2

Raising $0$ to any positive power yields $0$ .

$0 \cdot \sec (0)$

Step 6.3

The exact value of $\sec (0)$ is $1$ .

$0 \cdot 1$

Step 6.4

Multiply $0$ by $1$ .

$0$