Find the value of :
`i^4 + i^5 + i^6 + i^7`

Find the value of ( i^2 + i^4 + i^6 + i^7 ) / ( 1 + i^2 + i^3 ) is ( a ) 1 - i ( b ) 1 + i ( c ) 2 - i ( d ) 2 + i

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

Find the value of : ( 2 + i )( 2 + i^3 ) ( 2 + i^5 ) ( 2 - i )

Find the values of (-i)^(1/6

Find the value of i^(2)+(-i)^(4)-i^(6)

Find the value of i^(2)+(-i)^(4)-i^(6) .

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

Find the value of (1+ i)^(6) + (1-i)^(6)

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)