radian measure [circular system]

A circular wall of radius 2 m and thickness 30 cm is to be constructed to a total height of 0.8 m. Bricks of measurement 15 cm × 8 cm × 8 cm are to be used. How many bricks would be needed? [Take π = 3.] => 3281 or 3312 or 3248 or 3225..

Let P be a point in a polar coordinate system. If r is the directed distance from the pole O to P and θ is the directed angle measured in counter clockwise direction with the initial side on the polar axis and the terminal side on the line OP, then write the polar coordina..

Trigonometry is that branch of mathematics which deals with the measurements of sides and angles of triangles. The figure obtained by rotating a given ray about its end point is called an angle. An angle is called positive if the direction of rotation of ray from initial side to ..

In algebra we found that the graph of algebraic functions helped greatly in studying the properties of the function. For the same reason, we shall study the graph of trigonometric functions. In plotting the graph of any trigonometric function the angle may be regarded as measured either i..

Graphs - In algebra we found that the graph of algebraic functions helped greatly in studying the properties of the function. For the same reason, we shall study the graph of trigonometric functions. In plotting the graph of any trigonometric function the angle may be regarded as measured..

\ s r q Hence the magnitude of an angle in circular measure..

Free energy of a system is defined as the maximum amount of energy available to a system during a process that can be converted into useful work. In other words it is a measure of capacity of a system to do useful work. It is denoted by symbol G and is given ..

Free Energy and Free Energy Change - Free energy of a system is defined as the maximum amount of energy available to a system during a process that can be converted into useful work. In other words it is a measure of capacity of a system to do useful work. It..

Degree/radian measures Basic trigonometric functions Special right triangles Trigonometric values of standard angles Justify the Pythagorean identities Trigonometric equations (0 to 360 degrees..

General Characteristics of Physical Equilibrium - From the physical equilibrium studied above, we have noticed that at equilibrium, some of the measurable properties of the system become constant. These can be summarized as follo..