advertisement

QUIZ 9 Math 1320-004 Friday, November 8 Name: by writing my name T swear by the honor code You have 10 minutes to complete this quiz. No notes, books or calculators are allowed. 1. ( points) Consider a 3-d curve (t). Write down a formula that calculates arc length,,s, as a function of a time-like parameter, t. 5. , W’Idt 2. (4 points) Calculate the unit tangent vector at the point where t = (1 + 3 t + te_t + sin(2t) ) 1 ‘ ‘(0) L — T 3. (4 0 for the curve f I )r 2j r 101 r’(o’ points) Calculate the curvature, J’J i, i(t) as a function of parameter t for the curve = 3+t t 2 A y•J) )vxr1i 11 ‘ V