Write the given second order equation as its equivalent system of first order equations. u" + 4.5u' – 7.5u = -7 sin(3t), u(1) = -7.5, u'(1) = -6 Use v to represent the "velocity function", i.e. v = Use v and u for the two functions, rather than u(t) and v(t). (The latter confuses webwork. Functions like sin(t) are ok.) = u'(t).

Consider the following equations: (a) y = 3x +7 (b) y + y = 0 (c) y/y= 232 (d) = 84x de (e) a2 + y? = 36 (f) a*/" + 4x*y/ = sin (æº) (g) + æ? = 36t For each of the following questions, answer with a list of letters, such as a,c,d. Which of the equations are: differential equations? linear differential equations? first order differential equations? autonomous differential equations?

how to apply the chain rule the following equation Y=sin 5x/2

デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT d. Find an equation of the tangent plane to the graph of the equation x 2 + y2 +22 = 9 at the point (-2,2,1)