## What is the derivative of TANX by first principle?

Prove that Derivative of tan x is sec^2 x – by First Principle.

**How do you differentiate according to first principle?**

A derivative is simply a measure of the rate of change. It can be the rate of change of distance with respect to time or the temperature with respect to distance. We want to measure the rate of change of a function y = f ( x ) y = f(x) y=f(x) with respect to its variable x x x.

**What is the derivative of tan 1?**

Derivatives and differentiation expressions.

Expression | Derivatives |
---|---|

y = cos-1(x / a) | dy/dx = – 1 / (a2 – x2)1/2 |

y = tan-1(x / a) | dy/dx = a / (a2 + x2) |

y = cot-1(x / a) | dy/dx = – a / (a2 + x2) |

y = sec-1(x / a) | dy/dx = a / (x (x2 – a2)1/2) |

### Is TANX continuous?

Hence, tanx is continuous at all real numbers except x=(2n+1)2π

**What do you mean by first principle?**

From Wikipedia, the free encyclopedia. A first principle is a basic proposition or assumption that cannot be deduced from any other proposition or assumption.

**Is tan 1 the same as 1 tan?**

tan^-1x is the inverse of tan. This is more formally known as arctan. Its a completely different to 1/tanx.

## Is TANX a function?

The tangent function is one of the main six trigonometric functions and is generally written as tan x. It is the ratio of the opposite side and the adjacent side of the angle in consideration in a right-angled triangle.

**Is TANX a discontinuous function?**

Therefore, tanx is discontinuous at x=2π

**Why are first principles important?**

First principles allow us to take any idea, no matter the complexity, and break it down into its parts and then break those down further, until you get to the core building blocks. While this process is not easy, it is valuable.