real numbers

The complex number Z = x + iy may be represented graphically by the point P whose rectangular co-ordinates are (x, y). Thus each point in the plane is associated with a complex number. In the figure, P defines Z = x + iy. It is customary to choose x-axis as real axis..

The sum and product of two conjugate numbers is always real. 2a + i(0) 2a ..

Matrices : A rectangular array of entries is called a Matrix. The entries may be real, complex or functions. The entries are also called as the elements of the matrix. The rectangular array of entries are enclosed in an ordinary bracket or in square bracket. Determinants : ..

Summary - A matrix is defined as a rectangular array of elements. If the arrangement has m rows and n columns, then the matrix is of order mxn (read as m by n). A matrix is enclosed by a pair of parameters such as ( ) or [ ]. It is denoted by a capital letter. Two matrices are said to be comparable..

Which of the following numbers is a rational and a real number? => - 48 or 3.141296... or 1 0 5 or 2..

Which of the following numbers is a rational and a real number? => 5 or - 18 or 4.2513816... or 1 3 5..

Use a real number to represent a credit of $10000. => - 10000 or + 10000..

Find the number of real zeros. => 4 or 5 or 2 or 3..

Name the subset(s) of the real numbers to which '- 34' belongs. => whole numbers, integers, rational numbers, real numbers or natural numbers, whole numbers, integer numbers, rational numbers, r..

The multiplication of a vector by a real number assumes a lot of significance in such statements as - velocity of car B is double the velocity of car A l..