Question about Casio FX-9750GPlus Calculator

Help please I'm trying to get the answer of 19031... when I enter 250000e-0.019(12) but I can't figure out how can you please help me

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• Casio Master

Mathematical notation should be adhered to in order eliminate ambiguities and avoid wrong answers.

To find you 'result' I had to try different scenarii.
The one that worked is the following

1. e^(-0.019) is 0.9811793622
2. raise this result to the 12th power: the result is 0.7961242598
3. Multiply this last result by 250000 to find 199031.065
The last result suggests that you made a mistake copying the final result.
This is how you should have presented the question.

Calculate 250000*(e(-0.019))^12
Notice the two set of parentheses.
To type that on your calculator
250000[*] [ ( ] [ ( ] [ Shift ] [ e] [(-)] 0.019 [ )] [ ) ] [ ^] 12

In the foregoing key sequence,
1. every symbol between square brackets [ ] is a keypad key.
2. Numbers are not put in brackets.
3. [(-)] is the change sign symbol and
4. [^] is the general power key under [VARS] and above [LN]

At least it did not take me 400 years as in the case of Fermat's theorem.

Posted on Jan 01, 2010

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Posted on Jan 02, 2017

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