(a) Find the polynomial degree 3 in term of three linear factors if P(1) = P(-2) = 0,
P(3) = 200 and P(-1) = 8.
(b) Find the partial fraction for
12x³ + 1/P(x)
a)
Let P3(x)=a(x−x1)(x−x2)(x−x3).P_3(x)=a(x-x_1)(x-x_2)(x-x_3).P3(x)=a(x−x1)(x−x2)(x−x3).
Given x1=1,x2=−2.x_1=1, x_2=-2.x1=1,x2=−2. Then
P(3)=200P(3)=200P(3)=200
P(−1)=8P(-1)=8P(−1)=8
Answer:
b)
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