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Interpret R(t) As The Position Of A Moving Object At Time T. Determine The Tangential And Normal Com

Interpret r(t) as the position of a moving object at time t. Determine the tangential and normal components of acceleration. r(t)=(3 cos(2 t))i + (3 sin(2t))j + (3) k b) © [4,=0, =12] c) • [–, ,-1] a) © [44=1,47=24] c) © [q;=12, 4,-) f) None of the above.
Find the domain of the given function: f(x,y)=7 3+ 4- a) {(x, y)] -3 <x<3 and -2 <y<2} b) {(x, y)| x< 3 and ys 2} c) O {(x, y) -3 <rs 3 and -2 <J< 2} d) {(x, y)| x <3 and y <2} e) {(x, y) -3 Srs 3 and -2 <y<2} f) None of the above.