New posts in Tangent Line

How to find coordinates of tangent point on circle, given center coordinates, radius, and end point of tangent line

The tangent at $(1,7)$ to the curve $x^2=y-6$ touches the circle $x^2+y^2+16x+12y+c=0$ at...

Tangent circles in a rectangle

Linear approximation of $\cos\big(\frac{\pi}{5}+0.07\big)-\cos\big(\frac{\pi}{5}\big)$

Lines tangent to a parabola

circle envelope tangent in another circle

How can a "proper" function have a vertical slope?

Line$ 3x-4y+k$ touches a circle $x^2+y^2-4x-8y-5 = 0$ at $(a,b)$, then find $k+a+b =?$

What is the tangent at a sharp point on a curve?

Finding the derivative of $x \mapsto x^n$ for large $n$ using the definition