\({{\left( {1+x} \right)}^{n}}=1+\frac{{nx}}{{1!}}+\frac{{n\left( {n-1} \right){{x}^{2}}}}{{2!}}+\ldots \)
\(f\left( x \right)={{a}_{0}}+\mathop{\sum }_{{n=1}}^{\infty }\left( {{{a}_{n}}\cos \frac{{n\pi x}}{L}+{{b}_{n}}\sin \frac{{n\pi x}}{L}} \right)\)
1) \(\left( x \right)={{a}_{0}}+\mathop{\sum }_{{n=1}}^{\infty }\left( {{{a}_{n}}\cos \frac{{n\pi x}}{L}+{{b}_{n}}\sin \frac{{n\pi x}}{L}} \right)\) 2) The lines represented by the equation \(\displaystyle 2x{{\,}^{2}}\,+\,\,5\,xy\,+\,\,2\,y{{\,}^{2}}\,=\,0\)are 3)The lines represented by the equation \(\displaystyle …
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