Wm .. \\...-. ....., A particle's motion is described by parametric equations x(t) and y(t) fort a 0 such ihat points) dk 1 I and i_4 ar ,2 , If at t = 3 the particle is at (-2, 1), which of the following represents the equation of the tangent line to the path of the particle at that time? (10 Q 2. (09.01 MC) Which of the following can determine the length of the curve defined as x(t) = 3cos2t and y(t) = -sin2t for 0 s ts 1? (10 points) Nov3cost + ( - sin ? t)at Of V(-6costsint)2 +(-2sintcost)2 dt So V( - 6 sin ?t ) + (-2cos ? ()dt O MV(-6costsint) +(-2sintcost)dtW Q 3. (09.02 MC) An object's velocity is defined by the vector-valued function v(t) = (In(3-t),e2t"-1 ). What is the acceleration vector a(t) at t(1)? (10 points) O ( In 2.e)