Using a scientific calculator
Using a scientific calculator

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Using a scientific calculator

6 Powers and surds on your calculator

Inputting fractional and negative powers

In Activity 4 you saw how to use the key to input powers on the calculator. The key can be used with other functions, such as the fraction template , to calculate fractional and negative powers.

Activity 14 Calculating more powers

Calculate each of the following using your calculator, giving your answer correct to 3 significant figures.


  1. (to 3 significant figures) using the key sequence .
  2. (to 3 significant figures) using the key sequence .
  3. (to 3 significant figures) using the key sequence .

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