Equations of motion in a plane

In three-dimensional geometry, lines that intersect the x, y, and z axes are referred to as the direction cosines of the line. They are defined as follows: To preserve consistency, the letters l, m, and n are often employed to denote these directional cosines.   Cosine angles may be determined only after the angle formed […]

Everything in this world is made up of different shapes. Some are definite, while some are indefinite in manner. Now, let’s look into the shapes to determine the present area. For definite shapes, we can apply formulas to find the area. However, for indefinite shapes, we need to divide the shapes into some numbers to

Expression Substitution is useful when we have to convert a very complicated function into a smple form. We can use Expression Substitution in inverse trigonometric function, differentiation of function, and sometimes even in the integration of function. If we find any of the expressions involved in function, we first need to make the right substitution