Hi I got an explanation for this before but am still confused, can someone help with steps its problem A17 : http://www.baruch.cuny.edu/sacc/documents/MTH2205_FinalExamv8.pdf.
the persons said -ln 1 + ln 5 = ln 5 but I don't get how this happens.
the persons said -ln 1 + ln 5 = ln 5 but I don't get how this happens.
-
It's because ∫1/(3 - x) dx first integrates to -ln|3 - x| (Do you understand that part?)
Now plug in those limits that you wanted:
-ln|3 - x| evaluated from -2 to 2
= -ln(1) + ln(3 - (-2)) = -ln(1) + ln(5)
Remember that ln(1) = 0, so you're just left with ln(5).
Now plug in those limits that you wanted:
-ln|3 - x| evaluated from -2 to 2
= -ln(1) + ln(3 - (-2)) = -ln(1) + ln(5)
Remember that ln(1) = 0, so you're just left with ln(5).
-
No problem at all =).
Report Abuse