Derivatives of order two

The derivative of a function f(x) gives the rate of change of f(x) with respect to x. The derivative of order two, or the second derivative of f(x), represents the rate of change of the first derivative of f(x) with respect to x. Mathematically, the second derivative of f(x) is denoted as f”(x) or d^2/dx^2…

Differential Calculus Trigonometric

Differential calculus is a branch of calculus that deals with the study of rates of change and slopes of curves. Trigonometry is a branch of mathematics that deals with the study of triangles and the relationships between their sides and angles. The two subjects are related in that trigonometric functions, such as sine, cosine, and…

Chain rule

The chain rule is a fundamental rule in calculus that allows you to differentiate a function that is composed of two or more functions. More specifically, if you have a function f(x) that is composed of two functions g(x) and h(x), such that f(x) = g(h(x)), then the chain rule states that: f'(x) = g'(h(x))…

Derivative of the sum

Let f(x) and g(x) be two functions that are differentiable at x. The derivative of their sum, h(x) = f(x) + g(x), is given by: h'(x) = f'(x) + g'(x) In other words, to find the derivative of the sum of two functions, you simply take the derivatives of each function individually and add them…

Coplanar lines

Coplanar lines are lines that lie on the same plane. In other words, any two points on each of the lines can be connected with a straight line that lies entirely in the same plane. For example, if two lines intersect, they are coplanar because the plane containing one line also contains the other line.…

Skew lines

Skew lines are two non-intersecting lines that are not parallel to each other. In other words, skew lines are two lines in three-dimensional space that do not lie in the same plane and do not intersect each other. Skew lines are important in geometry and can be used to solve various problems, such as finding…

Three dimensions: Distance between two points

The distance between two points in three-dimensional space can be found using the following formula: d = √((x2 – x1)^2 + (y2 – y1)^2 + (z2 – z1)^2) where (x1, y1, z1) and (x2, y2, z2) are the coordinates of the two points, and d is the distance between them. To use the formula, you…

Intersection of a circle with a straight line or a circle

The intersection of a circle and a straight line or a circle can take different forms depending on the relative positions and sizes of the objects involved. Intersection of a circle and a straight line: If a circle and a straight line lie in the same plane, they can intersect in three different ways: Intersection…

Equation of the bisector of the angle between two lines

Suppose we have two lines in a Cartesian coordinate system, given by the equations: a1x + b1y + c1 = 0a2x + b2y + c2 = 0 The angle between these two lines can be found using the formula: tan(theta) = |(m2 – m1)/(1 + m1*m2)| where m1 and m2 are the slopes of the…