Question
${\left( {2{x^2} - \frac{1}{{3{x^2}}}} \right)^{10}}$ के प्रसार में $6$ वां पद होगा
अत: ${T_6} = {\,^{10}}{C_5}{(2{x^2})^5}{\left( { - \frac{1}{{3{x^2}}}} \right)^5}$
$ = - \frac{{10\,!}}{{5\,!\,5\,!}}32 \times \frac{1}{{243}} = - \frac{{896}}{{27}}$
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$\left( {\frac{{\partial u}}{{\partial x}} + \frac{{\partial u}}{{\partial y}} + \frac{{\partial u}}{{\partial z}}} \right)$ $(x + y + z) =$