definitions

If a and b are two quantities with the same units such that ; then Ratio does not have any unit. The quantities a and b are called terms of the ratio. a' is called antecedent (first term) b' is called consequent (second te..

Difference of two sets A and B, A - B is a set whose elements belong to A but not to B. A - B is called the relative complement of B w.r.t. ..

- 1 x For x [-1, 1], if q is an angle whose sine is x, then we say that sine inverse x is q and write sin -1 x = q . For practical purposes, only principal values of sin - 1 x are considered. sin - 1 x is a function of x with domain [-1,1] and range [- p /2, p /2]. The graph..

- 1 x tangent inverse of x is q and write tan - 1 x = q . In particular, The graph of tan - 1 x is as shown in the figure below..

- 1 x For x R - (-1, 1), if q is an angle whose secant is x, then we say that secant inverse of x is q and write sec - 1 x = q . In particular, For practical purposes, only principal values of sec - 1 x are considered. sec - 1 x is a function of x with domain R-(-1,1) and r..

One unit is the electrical energy consumed by an electrical appliance of power 1 kW when used for 1 ho..

If m 1 = m 2 = 1 unit and d = 1 unit, then, from equation (1) F = G The gravitational constant is defined as the force of attraction between two bodies of unit mass separated by unit distan..

Torque is the product of the magnitude of the force and the lever arm of the force. What is the significance of this concept in our everyday lif..

One ohm is the resistance of a conductor through which a current of 1 ampere flows when the potential difference across its ends is 1 vol..

Polynomials - An expression of the form in which a i are numbers belonging to some number system and 'n' is a non-negative integer, is called a polynomial. a i are called the coefficients of if a o 0, the polynomial is said to be of degree ..