How to find critical values of a function?
The critical points of a function are the points where the function is not differentiable. A function is differentiable at a point if the graph of the function near that point looks like a straight line. If the graph of a function near a critical point looks like a U or a V, then the point is said to be a critical point. In the image below, you can see the graph of the function $f(x)= x^3-5x$. The function is not differentiable
How to find critical values of a trigonometric function?
The graphs of standard trigonometric functions such as sine, cosine, tangent, and cotangent have a single critical value at zero. Other trigonometric graphs may have multiple critical values, which are usually the roots of the function.
How to find a critical value of a trigonometric function?
Given a function of the form f(x) = sin x or cos x, you can find a critical value by setting its derivative equal to zero. (You don’t need to differentiate the whole function because it will cancel out.)
How to find critical value of a function at
The critical value of a function is the value of at which the graph of the function becomes tangent to the x-axis. The function is continuous and differentiable at all critical values. If the function has any horizontal tangents at all, the function has at least one critical value. If the function has no horizontal tangents, it still has a critical value at the origin.
How to find critical value of a trigonometric function at a point?
The simplest way to find critical values of a trigonometric function at a point is to use the law of sines. Sine of an angle is equal to the opposite side divided by hypotenuse. Therefore, if we know the length of the opposite side and the length of the hypotenuse at a particular point, we can find the value of the sine at that point. If the length of the opposite side is 0, then the sine of the angle is undefined at that