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 A number, a, is a power of b if it is divisible by b and a/b is a power of b. Write a function that takes parameters a and b and returns True if a is a power of b. A number, a, is a power of b if it is divisible by b and a/b is a power of b. Write a function that takes parameters a and b and returns True if a is a power of b. 3. Write a function that takes a string as a parameter. Calculate the length of a string without using the Len function. Print the length concatenated with the string and aligned towards the extreme right of the output screen.