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Find an equation of the tangent line to the curve at the given point.
$ y = $ cos $ x - $ sin $ x, (\pi, - 1) $
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00:38
Frank Lin
Calculus 1 / AB
Chapter 3
Differentiation Rules
Section 3
Derivatives of Trigonometric Functions
Derivatives
Differentiation
Campbell University
Harvey Mudd College
University of Michigan - Ann Arbor
Lectures
04:40
In mathematics, a derivative is a measure of how a function changes as its input changes. Loosely speaking, a derivative can be thought of as how much one quantity is changing in response to changes in some other quantity; for example, the derivative of the position of a moving object with respect to time is the object's velocity. The concept of a derivative developed as a way to measure the steepness of a curve; the concept was ultimately generalized and now "derivative" is often used to refer to the relationship between two variables, independent and dependent, and to various related notions, such as the differential.
44:57
In mathematics, a differentiation rule is a rule for computing the derivative of a function in one variable. Many differentiation rules can be expressed as a product rule.
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it's layers of a new married here. So we have y is equal to co sign checks minus sign. Thanks. Sure, if it is gives us negative sign minus co sign. So we're gonna plug in Xs equal to pi, which gives us two slope of detention. This gives us one. So using the point slope formula, we get wine minus negative. One over X minus pi was equal to one. So I get why is equal to us minus pi minus one.
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