## Question

###### 3. Given r(t) = (sin 2t , cos 2t cos? 2t finda) the unit tangent vector T() at t=T 2b) the curvature at t= T 2

3. Given r(t) = (sin 2t , cos 2t cos? 2t find a) the unit tangent vector T() at t=T 2 b) the curvature at t= T 2

## Answers

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