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(1 Point) Find the Solution to the Following Recurrence: A_(n)=-8a_(n-1)-12a_(n-2)+441n for Ngeqslant 2 with Initial Conditions A_(n)=

Soru

(1 point) Find the solution to the following recurrence: a_(n)=-8a_(n-1)-12a_(n-2)+441n for ngeqslant 2 with initial conditions a_(n)=

Çözüm

4.5 (376 Oylar)
Rıdvan
Uzman doğrulaması
Uzman · 3 yıl öğretmeni

Cevap

To solve the given recurrence relation, we can use the method of solving linear homogeneous recurrence relations with constant coefficients.The given recurrence relation is: for We can rewrite this as: Now, let's assume a solution of the form , where is a constant.Substituting this into the recurrence relation, we get: Dividing both sides by , we get: Now, we can solve this quadratic equation to find the values of .The quadratic equation is: Solving this equation, we get: and Now, we can write the general solution of the recurrence relation as: To find the values of and , we can use the initial conditions.Let's assume and as initial conditions.Substituting these values into the general solution, we get: Solving this equation, we get: Now, we can substitute this value of into the general solution: Simplifying this expression, we get: To find the value of , we can use the initial condition .Substituting into the expression for , we get: Solving this equation, we get: Therefore, the solution to the given recurrence relation is: So, the final answer is .