# Do you need to memorize trig derivatives?

## Do you need to memorize trig derivatives?

You should memorize the derivatives of the six trig functions. The sec on the left has an arrow pointing to sec tan — so the derivative of secx is secx tanx. The bottom row works the same way, except that both derivatives are negative.

## How do you read a derivative formula?

Read this rule as: if y is equal to the sum of two terms or functions, both of which depend upon x, then the function of the slope is equal to the sum of the derivatives of the two terms. If the total function is f minus g, then the derivative is the derivative of the f term minus the derivative of the g term.

## How do you remember hyperbolic functions?

Remember sinh(x) is “smaller” than cosh(x)! Like their trigonometric counterparts, the cosine is even and the sine is odd and they share the value at 0. ei0=cos(0)+isin(0)=1.

## Do you learn derivatives in pre calc?

Precalculus is designed to prepare you for more challenging math courses. Precalculus introduces to you the concepts that you will be learning about in further classes. You will be learning about limits and derivatives for the most part. You can even derivatives to find the rate of change in 3 dimensional graphs.

## What is the derivative of 2x?

2
Since the derivative of cx is c, it follows that the derivative of 2x is 2.

## What is sin 90 as a fraction?

1/ 1
Therefore, sin 90 degree equals to the fractional value of 1/ 1.

## How do you start building up your knowledge of derivatives?

To start building our knowledge of derivatives we need some formulas. Two basic ones are the derivatives of the trigonometric functions sin (x) and cos (x). We first need to find those two derivatives using the definition.

## What is the most important rule for taking derivatives?

The chain rule is the most important rule for taking derivatives. With it you’ll be able to find the derivative of almost any function. To learn about the chain rule go to this page: The Chain Rule.

## How do you find the derivative?

Or sometimes the derivative is written like this (explained on Derivatives as dy/dx): dy dx = f (x+dx) − f (x) dx The process of finding a derivative is called “differentiation”. You do differentiation… to get a derivative.

## Is the power rule the hammer of derivatives?

If the Power Rule is the hammer of derivatives, it is pretty useless without a collection of different kinds of nails—one for every purpose. Calculus is full of derivatives, most of which cannot be nailed down by the Power Rule alone.