Why don't tan [math]90^{\circ}[/math] and tan [math]270^{\circ}[/math] exist? - Quora

Answer (1 of 11): What is a "tangent"? It is a line that intersects a circle at only one poimt. Then what is the "TAN" function? It is a function, that returns the slope of the tangent line for a given angle relative to a zero angle. With the "slope" of the tangent line and the point of intersect

Where is the function tan (sin x) discontinuous? - Quora

Why is tan 270 undefined? - Quora

How can we take theta as 90 degrees if there is only 1 right angle in a triangle? If we take it as 90, then it will not be a triangle. - Quora

Given that Cos (x-20) ° = Sin (2x+32) ° and x is an acute angle, what is Tan(X-4) °? - Quora

If the tangent of an angle of a right-angled triangle is 0.8, what is its longest side? - Quora

What is meant by cos theta in physics? - Quora

Is tan 90° equal to infinity? Isn't 1/0 undefined? - Quora

How do you evaluate tan 90 ?

Why sine theta is the y coordinate of a point in the unit circle ? - Quora

What are the sine, cosine, and tangents of 390 degrees? - Quora

How does one attain the 'intuition' for how to evaluate Trigonometric limits? - Quora

How to find the range of trigonometric functions - Quora