simplify the following `2i^2+6i^3+3i^(16)-6i^(19)+4i^(25)`

Simplify the following : i^(6)+i^(8)

Simplify the following: (2i)^(3)

Evaluate 2i^(2)+ 6i^(3)+3i^(16) -6i^(19) + 4i^(25)

Simplify the following: i^(4)+i^(8)+i^(12)+i^(16)

Simplify the following: (-i)(2i)(-(1)/(8)i)^(3)

Simplify the following : (i) [i^(19) +(1)/(i^(25))]^(2) (ii) [i^(5)- (1)/(i^(3))]^(4)

Simplify the following: (5i)(-(3)/(5)i)

Gimplify each of the following an 2(3+4i)+i(5-6i)

Simplify the following : (i) ((36)^((1)/(4)))/((6)^((1)/(3)))

Write the following in the form x+iy: (i) (3+2i)(2-i) (ii) 2i^(2)+6i^(3)+3i^(16)-6i^(19)+4i^(25) . (iii) ((3-2i)(2+3i))/((1+2i)(2-i)) .