Tangible refers to things we can see and feel whereas intangible are things that cannot be seen or felt. Let us understand this by an example. Suppose the cost of doing an MBA course from a top business schools is $100000 while the cost of a low rung school is $50000.
Complex numbers have both a real number element and an imaginary number element, usually in the form a + bi. In this form, a and b are real numbers, while i is an imaginary number. An imaginary number is the designation given for the square root of negative one. Many careers that employ higher mathematics also use complex numbers, which can help simplify mathematical equations that would otherwise be much longer.
An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by its property i2 = â1. The square of an imaginary number bi is âb2. For example, 5i is an imaginary number, and its square is â25. Except for 0 (which is both real and imaginary), imaginary numbers produce negative real numbers when squared.