Could some give a little help.
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Originally Posted by jut Could some give a little help.
Now expand the right side. Can you take it fron here?
Ok, I get...
But how can I find the 4 constants??
the coefficients of the previous three terms must be 0, and the sum of B and D must be 1. that is, we get a linear equation system with four unknowns.
Originally Posted by jut Ok, I get...
But how can I find the 4 constants?? In order that two polynomials be equal for all values of the variable coefficients of the same powers must be equal.
Here you have
so you must have 1.84A+ B+ 0.76C+ D= 0, A+1.84B+ C+ 0.76D= 0, A+ C= 0, and B+ D= 1. That gives you four equations to solve for A, B, C, and D.
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