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The Fundamental Theorem of Line Integrals // Big Idea & Proof // Vector Calculus
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Back in 1st year calculus we have seen the Fundamental Theorem of Calculus II, which loosely said that integrating the derivative of a function just gave the difference of the function at the endpoints. That is, what happened in the middle did not matter. In this video we upgrade to the Fundamental Theorem of Line Integrals, which is a generalization of the Fundamental Theorem of Calculus. It says that when you take the line integral of a conservative vector field (ie one where the field can be written as the gradient of a scalar potential function), then this line integral is similarly just the difference of the function at the endpoints and is thus path independent - only the endpoints matter. In this video we will motivate this theorem, prove it formally, and connect the idea back to that of conservative vector fields.
0:00 FToC
1:24 Fundamental Thm of Line Integrals
2:50 Proof
5:33 Conservative Fields
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0:00 FToC
1:24 Fundamental Thm of Line Integrals
2:50 Proof
5:33 Conservative Fields
MY VECTOR CALCULUS PLAYLIST:
OTHER COURSE PLAYLISTS:
OTHER PLAYLISTS:
► Learning Math Series
►Cool Math Series:
BECOME A MEMBER:
MATH BOOKS & MERCH I LOVE:
SOCIALS:
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