how to find unit tangent vector?

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Ruman Ahmed
Ruman Ahmed on 18 Nov 2019
Commented: darova on 18 Nov 2019
i have a equation r=(tcost+t) i+(sint)j
x=tcost+t and y=sint
i have to find dr/dt
modulus of dr/dt=sgrt(x^2+y^2)
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Ruman Ahmed
Ruman Ahmed on 18 Nov 2019
how do i get these parts pls do help
darova
darova on 18 Nov 2019
Did you find dx and dy?

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