after i watched this video Improper Integrals Instructor: Christine Breiner, my insight is very open because the video is very good to give information
if the area in example (a) always cancels out when b--> infinity , why isnt the integral of cos x equal to zero? or is it only zero for values 2*k*pi ( with k : 0 and positive integers)?
@RAHELL19FM because infinity is not defined as 2kpi when k goes to infinity for positive integers. we don t know what is infinity there for we can t say it s 0
@RAHELL19FM It's zero for 2kpi, as you mentioned, because the function is periodic, as you know. So for every upward slope, there is a downward slope. The two are equal in area, but opposite about the y axis (and so negative with respect to area). They cancel each other out.
At the end of the video. Why does she not take the -3^(1/3)?
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imegatrone 1 month ago 2
after i watched this video Improper Integrals Instructor: Christine Breiner, my insight is very open because the video is very good to give information
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anaxarte 4 months ago
Comment removed
brainybaboon 8 months ago
if the area in example (a) always cancels out when b--> infinity , why isnt the integral of cos x equal to zero? or is it only zero for values 2*k*pi ( with k : 0 and positive integers)?
RAHELL19FM 9 months ago
@RAHELL19FM because infinity is not defined as 2kpi when k goes to infinity for positive integers. we don t know what is infinity there for we can t say it s 0
yoyaya007 3 months ago
@RAHELL19FM It's zero for 2kpi, as you mentioned, because the function is periodic, as you know. So for every upward slope, there is a downward slope. The two are equal in area, but opposite about the y axis (and so negative with respect to area). They cancel each other out.
niuchemist 3 months ago
She is very clear and the fact that she is cute is the extra frosting in my cake, to bad she is not in my school.
spychic101 11 months ago 8