Question

D

Answer 1

Answer:

D. 1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Function Notation

Pre-Calculus

• Unit Circle

Calculus

• Derivatives
• Derivative Notation
• Derivative of tan(x) = sec²(x)

Step-by-step explanation:

Step 1: Define

$\frac{d}{dx} [tan(x)]\\x = \pi$

Step 2: Differentiate

1. Differentiate:                    $\frac{d}{dx} [tan(x)] = sec^2(x)$

Step 3: Evaluate

1. Substitute in x:                    $sec^2(\pi)$
2. Evaluate:                              $1$