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COMEDK2020MathematicsBasics of Mathematics

7^ 2 ₇ 5 is equal to

Options

  1. A5
  2. B₇ 35
  3. C₇ 25
  4. D25

Correct answer

D. 25

Step-by-step solution

We have, 7^ 2 5 5=7^ ₇ 5² =5² [ m a= a^ m ] [a^ _ a b =b ]=25

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