`i+i^2+i^3+i^4`

State which of the following is the value of (1+i+2i^2+i^3+i^4) [given i=sqrt-1]

Simplify: i ^2+i ^3+i ^4+i ^5

Find the values of following expressions: i^(49)+i^(68)+i^(89)+i^(110) (ii) i^(30)+i^(80)+i^(120) (iii) i^+i^2+i^3+i^4 (iv) i^5+i^(10)+i^(15) (v) (i^(592)+i^(590)+i^(586)+i^(584))/(i^(582)+i^(580)+i^(576)+i^(574)) (vi) 1+i^2+i^4+i^6+i^8+doti^(20) (vii) (1+i)^6+(1-i)^3

i+ 2i^(2) + 3i^(3) + 4i^(4) + …. + 100i^(100) =

Find the modulus and argument of the complex number z =(i^2 +i^3)/(i^4 +i^5)

Prove that : 2i^2+6i^3+3i^16-6i^19+4i^25=1+4i .

Simplify: i+ 2i^(2) + 3i^(3) + i^(4)

The value of i^(0)+i^(1)+i^(2)+i^(3)+i^(4) is

Prove that : 1/i-1/i^2+1/i^3-1/i^4=0 .

simplify: 5i^5+4i^4+3i^3+2i^2+i