If x2-x-1-x2-2x-1-A-B-x-1-C-x-12 then A-B-

The correct option is C 2C Given, x^2+x+1(x+1)^2=A+B(x+1)+C(x+1)^2 x^2+x+1(x+1)^2=A(x+1)^2+B(x+1)+C(x+1)^2 x^2+x+1=A(x+1)^2+B(x+1)+C Let us ...

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Integration by Partial Fractions

If x2+x+1/x...

Question

If $\frac{x^{2} + x + 1}{x^{2} + 2 x + 1} = A + \frac{B}{x + 1} + \frac{C}{(x + 1)^{2}}$ then $A - B =$

4 C

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4 C + 1

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3 C

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2 C

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Solution

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Similar questions

\frac{2 x + 1}{(x - 1) (x^{2} + 1)} = \frac{A}{x - 1} + \frac{B x + c}{x^{2} + 1} \Rightarrow \frac{A - B}{C} =

f (x) = \sqrt{x + 3}

g (x) = x^{2} + 1

f (g (x)

\frac{x^{2} + x + 1}{(x + 1)^{2}} = A + \frac{B}{x + 1} + \frac{C}{(x + 1)^{2}}

A + B + C

X

C =

X = x : 1, 2, 3, 4

P (X = x) : C, 2 C, 3 C, 4 C

\frac{(x - 1)^{2}}{x^{3} + x} = \frac{A}{x} + \frac{B x + C}{x^{2} + 1}

A = . . ., B = . . ., C = . . .

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