If working in significance arithmetic this would need to be rounded accordingly.
For help with mathematical typesetting, see LaTeX Help Subforum.
You need to realize that means nothing more than 1.23 multiplied by 10^4. Compute as you would any other expression involving multiplication and division. Remember rules for exponents, and .
Yep, I located LaTex in the faq and finally now in the forum.. mods need to fix the link.
Anyway, the math is being multipled as noted... the work is all there, but suspect your suggesting not to solve the value of the power until the final result.
Also, in parentheses the denomenator is , with what you had wouldn't that be incorrect? If there was a problem of , wouldn't that be not ?
Maybe I'm preaching to the choir but for example if you were presented with this problem
you would definitely not want to expand numerator and denominator separately, but rather use the method given above and immediately see that the answer is .
As to your calculator woes, it's kind of hard to "diagnose over the phone" (meaning it would be much easier if I could see in person), but I suppose if you described what kind of calculator you have and what keystrokes you used we might get to the bottom of it.
to get it by calculator :
enter 5.16 then pres "exp" than 6 than "-" (+/- probably is written) than multiply "*" then enter 8.3 than "exp" than 5 pres "=" , than divede ( / ) than 2.07 again "exp" and 4.... press "=" again (you can do it without "=" before dividing but if you need to write down on paper .... ) than you will get 0.000208101 so now press "FIX" or something like that (depending on type of calculator , can be F -> E .... or something ) than you will get