### All High School Math Resources

## Example Questions

### Example Question #1 : Understanding Derivatives Of Trigonometric Functions

Find the derivative of the following function:

**Possible Answers:**

**Correct answer:**

Explanation:

The derivative of is. It is probably best to memorize this fact (the proof follows from the difference quotient definition of a derivative).

Our function

the factor of 3 does not change when we differentiate, therefore the answer is

### Example Question #2 : Understanding Derivatives Of Trigonometric Functions

**Possible Answers:**

**Correct answer:**

Explanation:

The derivative of a sine function does not follow the power rule. It is one that should be memorized.

.

### Example Question #3 : Understanding Derivatives Of Trigonometric Functions

What is the second derivative of ?

**Possible Answers:**

**Correct answer:**

Explanation:

The derivatives of trig functions must be memorized. The first derivative is:

.

To find the second derivative, we take the derivative of our result.

.

Therefore, the second derivative will be .

### Example Question #5 : Understanding The Derivative Of Trigonometric Functions

Compute the derivative of the function .

**Possible Answers:**

**Correct answer:**

Explanation:

Use the Chain Rule.

Set and substitute.

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### All High School Math Resources

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