Convert each of the following complex numbers into polar form:
`{:((i),3,(ii),-5,(iii),i,(iv),-2i):}`

Explanation

To convert the given complex numbers into polar form, we will use the formula for polar representation of a complex number \( z = x + iy \), which is given by:

\[ z = r(\cos \theta + i \sin \theta) \]

where:
- \( r = \sqrt{x^2 + y^2} \) is the modulus,
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