max, min and average to resultant function

hi, i have these 3 functions

http://img804.imageshack.us/img804/2230/provakd.jpg

i must calculate the resultant function, and to find the max, min and the average.. i have tried to calculate it, i have found these values (max=53; min=38; average=43) but the solution in my book are different (max=54; min=19; average=34).. can you help me?? thank you!!

Re: max, min and average to resultant function

What do **you** mean by "resultant function"? I know what the "resultant" of vectors is (the sum of the vectors) but I don't know what is meant by "resultant function".

Re: max, min and average to resultant function

sum of the three functions

Re: max, min and average to resultant function

Quote:

Originally Posted by

**ulissess** hi, i have these 3 functions

http://img804.imageshack.us/img804/2230/provakd.jpg
i must calculate the resultant function, and to find the max, min and the average.. i have tried to calculate it, i have found these values (max=53; min=38; average=43) but the solution in my book are different (max=54; min=19; average=34).. can you help me?? thank you!!

$\displaystyle f_1(t)$ max value is 35, min is 15

$\displaystyle f_2(t)$ ... these are just intervals (I think) what does **"19per10"** mean???

you have some clarification to do if you want some help with this.