Question

What is a tangent??

Answer 1

In geometry, the tangent line (or simply tangent) to a plane curve at a given point is the straight linethat "just touches" the curve at that point. Leibniz defined it as the line through a pair of infinitely closepoints on the curve.[1] More precisely, a straight line is said to be a
tangent of a curve y = f (x) at a point x = c on the curve if the line passes through the point (c, f (c))on the curve and has slope f '(c)where f ' is the derivative of f. A similar definition applies to space curves and curves in n-dimensional Euclidean space.
I hope it will help you

Answer 2

Hey here is your answer....

A tangent is a straight line that touches a curve at one point only.
It's use in differential calculus when you find the gradient of the tangent to a curve.

In trigonometry,the tangent of an angle x in a right triangle is the ratio of the side opposite the angle to the side adjacent to the angle.

Hope it helps you....