Powers - using a calculator
All scientific calculators have a 'power' button. This button may be labelled \(x^y\) or \(y^x\) or \({x}\)■. Check to find the ‘power’ button on your own calculator. This is particularly useful when the index number is large.
Example
To work out \(4^{10}\):
- enter \({4}\)
- press the power button
- enter \({10}\)
- press \({=}\)
You should get the answer \({1,048,576}\).
Question
Use your calculator to find the values of the following:
a) \(2^{11}\)
b) \(5^8\)
c) \(2^6 \times 3^5\)
a) \(2,048\)
b) \(390,625\)
c) \(15,552\)