A function is a relation that assigns to each input value exactly one output value. A function can be defined as a rule that relates how one quantity depends on…
read moreInverse of a function The word inverse comes from the word invert which means opposite, upside down. Let f and g be two functions such that function g is inverse…
read moreA function can be defined as a rule that relates how one quantity depends on other quantities. A function is a relationship between two variables. The first variable is called…
read moreA function is a relation that assigns to each input value exactly one output value. Like numbers and polynomials we can add, subtract, multiply and divide functions which results into…
read moreRational numbers A rational number is any real number that can be written as a ratio, that is, it can be written as a fraction. A rational number can be…
read moreWe are told that we cannot take square root of a negative number. However, we can take the square root of a negative number, but it involves using a new…
read moreThe unit circle is a circle whose radius is one and center is at the origin. According to Pythagorean Theorem,…
read moreRadian and Degree are the most commonly used units to measure angels. Angle in degrees is denoted by symbol ° e.g. 50°. The radian is represented by ‘rad’ or by…
read moreIn greek ‘Trig’ means triangle and ‘metic’ is for measurement. The Trigonometric rations are used to express relationship between angles and sides of a right triangle ( a triangle with…
read more