Session 3: Tangent and unit tangent vector to a parameterized curve. Examples on sketching tangent.

[@DevCode_Cafe]

Thank you so much sir... Its really helpful

[@DrMathaholic]

Welcome 😊

[@adarshganamukhi9858]

I feel x should also be a part of the equation
As x=3, why not take 8pi as 8(x)pi/3
This makes sense as in 3d, a curve has a tangential plane instead of a single tangent

[@DrMathaholic]

Pls mention the timestamp so that i can get a reference for youe comment.

[@adarshganamukhi9858]

@@DrMathaholic at 12.20

[@phenomenal_vs1511]

💎💎💯💯

[@unknownlast2080]

Thank You Very Much Sir

[@DrMathaholic]

Most welcome :)

[@Anibites27]

Sir r'(2π) should be (0,3,4)

[@DrMathaholic]

Yes, u r right..👏👏

[@puscodo3886]

cos 2pi = -1 , in 2nd sum y coordinate will be -3/5 ?.

[@DrMathaholic]

Timestamp??
On the other hand cos(2 pi)=1

[@puscodo3886]

@@DrMathaholic ho sry..😅.. I just got confused... It with cos pi..
Tnx to correct me..

[@DrMathaholic]

@@puscodo3886 😊👍

[@rexxarhuskar790]

sir how can u equate the point (3,0,8pi) with tangent vector..shouldnt it be with r prime ...ans is (0,3,4)

[@DrMathaholic]

We are trying to find "t" such that r(t) will be the point P.
Note that point P is on the curve and image of r(t) is the curve. Thats the reason I equated with r(t).