[" 13.Find the value of expression: "],[1+i^(2)+i^(4)+i^(6)+i^(8)+.........+i^(20)]

Find the values of following expression: 1+i^2+i^4+i^6+i^8+doti^(20)

Find the value of i^(4) + i^(5) + i^(6) + i^(7) .

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

Find the value of: 1+ i^2 + i^4 + i^6 + i^8 +............+ i^20

Find the value of 1+i^(2)+i^(4)+i^(6)+i^(8)+...+i^(24)

Find the value of 1+i^(2)+i^(4)+i^(6)+i^(8)+...+i^(24)

Find the value of (1+i)(1+i^(2))(1+i^(3))(1+i^(4))

1+i^(2)+i^(4)+i^(6)+... .+i^(2 n)=