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For question 1, look up graphing by multiplication of ordinates in the Graphs topic.Tuna said:How can you draw this?
1. f(x) = cosx.e^-x
Can you please draw this in paint.
2. f(t) = 5/ ( 2+3.e^-t) , t equals to or more than 0.
Show that f ' (t) > 0 for all values of t in the domain. How could you do this?
Do we show 0 doesn't work but works for 1, 2, 3....?