हल कीजिए -
(i) `2(i)^(2)+6i^(3)+3i^(16)-6i^(19)+4i^(25)` (ii) `5i^(5)+4i^(4)+3i^(3)+2i^(2)+i`

Explanation

(i) `2i^(2)+6i^(3)+3i^(16)-6i^(19)+4i^(25)`
`=2i^(2)+6i^(2)*i+3(i^(2))^(8)-6(i^(2))^(9)*i+4(i^(2))^(12)*i`
`=2(-1)+6(-1)i+3(-1)^(8)-6(-1)^(9)*(i)+4(-1)^(12)*i" "(becausei^(2)=-1)`
(ii) `5i^(5)+4i^(4)+3i^(3)+2i^(2)+i`
`=5(i^(2))^(2)+3(i^(2))i+2(i)^(2)+i`
`=5(-1)^(2)*i+4(-1)^(2)+3(-1)i+2(-1)+i`
`=5i+4-3i-2+i+3i`