Use the first five terms of the exponential series e^x = 1 + x + x^2/2! + x^3/3! + x^4/4! +... to approximate e^3.9 to two decimal places.

Question

misty1212 · Answer

hi!!

misty1212 · Answer

replace $x$ by $3.9$ and use a calculator is what you are being asked to do

xapproachesinfinity · Answer

what is there to do just replace x by 3.9????`

misty1212 · Answer

on the other hand, you could just use a calculator and forget the power series doe!

misty1212 · Answer

xapproachesinfinity · Answer

I would just use the terms to x^3/3!
and forget the rest

anonymous · Answer

do I replace all x by that number?

anonymous · Answer

yes, unless you want an x in the answer!

anonymous · Answer

anonymous · Answer

i think i did something wrong.

xapproachesinfinity · Answer

eh no you got the point wrong
no exponential when you evaluate
just wherever you x put 3.9 only

xapproachesinfinity · Answer

e^3.9=1+3.9+(3.9)^2/2!

xapproachesinfinity · Answer

.....

anonymous · Answer

OHH

anonymous · Answer

Thank you all for the help!