How the argument is represented in exponential form?

The argument of complex number z=1+I is __________

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  Exponential form of complex number 0+11i is_________

 In exponential form of complex number what does r represents?

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  Exponential form of complex number 8+0i is_________

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Exponential form of complex number a+ib is_________

 Express -7+0i in exponential form

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  Exponential form of complex number 4+4i is_________

In exponential form argument is equal to__________

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  Exponential form of complex number 0-7i is_________