What is the value of (2+8i)(1-4i)-(3-2i)(6+4i)?

What is the value of 1+i^(2)+i^(4)+i^(6)+...+i^(100) where i=sqrt(-1)

Find the modulus or the absolute value of ((1 + 3i)(1 - 2i))/((3 + 4i))

Find the value of 1+i^2+i^4+i^6

find the value of |3+4i|+|1+5i|^(2)

Find the modulus of ((3+2i) (1+i) (2+3i))/((3+4i) (4+5i))

The modulus of ((1+2i)(3-4i))/((4+3i)(2-3i)) is

Find the value of 1+i^2+i^4+i^6+i^8

In the following, perform the indicated operations and write the result in the form x+iy: (i) (7-2i)-(3+2i)+(7+8i) (ii) 3-4i+2i-(8+7i) (iii) (7-2i)-(4+i)+(-3+5i)

Given that I = sqrt-1, what is the product of (2-4i+ 2i^(2))/(2)and (1)/(1-i) ?