$(5)$ What are the advantages of anonymous function? Explain with an example.

$(6)$ Write an anonymous function to convert a given number given in rectangular form to polar form.

$(7)$ What are uses of private function, explain with an example.

$(8)$ Write a program which uses function function.

$(9)$ Discuss the traditional design workflow.

$(10)$ Discuss the model based design workflow and the process steps in it$.$

$(11)$ What are the advantages of model based design workflow.

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