When subtracting complex numbers, we subtract real parts to other real parts, and imaginary parts to other imaginary parts.
If z1 = a+ib and z2= r+is are two complex numbers , then their subtraction z1 - z2 can be expressed as z1 + (-z2) i.e. (a + ib) - (r + is) = (a + ib) + (-r - is) where (-r - is) = -z2. Hence z1 – z2 = (a – r) + i(b-s).
If z1 = a+ib and z2= r+is are two complex numbers , then their subtraction z1 - z2 can be expressed as z1 + (-z2) i.e. (a + ib) - (r + is) = (a + ib) + (-r - is) where (-r - is) = -z2. Hence z1 – z2 = (a – r) + i(b-s).
I want to discuss about complex numbers as a number which can be put in the form a + bi termed as complex number, where a and b are real numbers and i is called the imaginary unit,in given expression "a" is the real part and b is the imaginary part of the complex number. The complex number can be identified with the point (a, b).
ReplyDelete