Question: Given a real number x and a positive integer k , how many multiplications are used to find x 2 k by starting with x

Given a real number x and a positive integer k, how many multiplications are used to find x2k by starting with x and successively squaring the appropriate number of times?
Multiple Choice
k multiplications
2k+1 multiplications
2k-1 multiplications
k+2 multiplications
Given a real number x and a positive integer k ,

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