WEBVTT
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So you know, first we are paramo triceps.
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Um, extra beauty to t. Why should be
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t c should be one minus. T t from
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0 to 1 is an extended parametric ization of the
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segment. So if of our tea, simply replace
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x by two t. Why buy tea? So
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why is she z square? Is this zebra Z
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replaced by one minus t and the minus X square
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to T minus T square, T minus one.
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So this one should be negative. T square plus
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three T minus one and nearly 40 square minus She
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plus What? Let me check it again. Now
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The expansion should be correct. So we take the
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dot product as are we have the first period of
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what is our priority. We take the derivative component
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wise. So what is the dot product? 40
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minus two T square, minus T squared. Plus
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three T minus one plus 40 square plus T minus
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one. This search. Yeah. Mm. So
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let's see how we get a negative two t square
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Negative T square prosper 40 square. So T square
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40. Prosperity is 17. Lost his 18.
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So minus one and minus one. So minus two
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so we just have to. That's an open a
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new page we integrate from 0 to 1, which
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is a range of T T squared plus 18 minus
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two. And I mean we can just write down
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the answer 1/3, because the T cube over three
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plumbing one plus. Similarly, this is 40 square
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plugging. One should be four to t plus one
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to t and plugging one should be should be,
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too. UH, so two plus 1/3 7/3.