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if  2m=16 then find  \text{if}\,\,2^m =16\, \text{then find}\,

3m−1 3^{m-1}

A81

B27

C9

D15

Answer:

B. 27

Read Explanation:

24=16 2^4 = 16

m=4

34−1=33=273^{4-1} = 3^3 = 27


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