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$21.$ Express the following as a sum of partial fractions: $\left(1\right)$ $\dfrac {2x+5} {\left(x-2\right)\left(x+1\right)}$ $\left(1i\right)$ $\dfrac {x^{2}+1} {\left(x-1\right)^{2}\left(x+1\right)}$ $22.$ Express the following as a sum of partial fractions: $\left(1\right)$ $\dfrac {13} {\left(2x+3\right)\left(x^{2}+1\right)}$ $\left(1i\right)$ $\dfrac {x^{2}-3x-7} {\left(x^{2}+x+2\right)\left(2x-1\right)}$ $22$ Find the value of r
10th-13th grade
Math
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Qanda teacher - Anubhav
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