In each of problems 11 through 28, find the general solution of the given differential equation. 11. y − y − y + y = 0 12. y − 3y + 3y − y = 0 13. 2y − 4y − 2y + 4y = 0 14. y(4) − 4y + 4y = 0 15. y(6) + y = 0 16. y(4) − 5y + 4y = 0 17. y(6) − 3y(4) + 3y − y = 0 18. y(6) − y = 0 19. y(5) − 3y(4) + 3y − 3y + 2y = 0 20. y(4) − 8y = 0 21. y(8) + 8y(4) + 16y = 0 22. y(4) + 2y

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Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

Refer to the table below if needed. second quadrant third quadrant fourth quadrant sin(1800- - cos(180° -) tan(180°-e) =- tane cot(1800-0) 10 it to solo 888 sin(180° +c) = - sine cos(180° +) =- cose tan(180° +c) = tane cot(180° +o) = cote sec(180° + c) = - seco csc(180° +2) = - csce sin(360° -) =- sine cos(360° -) = cose tan(360° - e) =- tane cot(360° -) = -cote sec(360° -) = seco csc(360° -) = csco sec(180° -) = csc(180° -) = csca 1991 given that sine = 3/5 and lies in quadrant ii, find the following value. tane