In: Math
zn = rn(cos n
+ i sin n
),
where n = power, r = modulus,
= angle of radius.
Here n = 1/5, r = 1, ? =
/2, z=i1/5
i1/5 = [ 11/5 (cos
+ i sin
)1/5
]
i1/5
{(cis
/2)1/5 , (cis 3
/2)1/5
, (cis 5
/2)1/5
, (cis 7
/2)1/5
,(cis 9
/2)1/5
}
i1/5
{(cis
/10), (cis 3
/10),
(cis 5
/10),
(cis 7
/10),
(cis 9
/10)
}
Note: all of these values are irrational. Also, symbol "cis
": "cis" is a shorthand for cos
+ i sin
Argand diagram: