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Recent questions tagged q2

Find the mean deviation about the mean for the data $38,70,48,40,42,55,63,46,54,44$

asked Jun 25, 2014 by meena.p

1 answer

If the term free from $x$ in the expansion of $(\sqrt x-\large\frac{k}{x^2})^{10}$ is $405$,find the value of $k$.

asked Jun 24, 2014 by sreemathi.v

1 answer

Find a if the coefficients of $x^2$ and $x^3$ in the expansion of $(3+ax)^9$ are equal.

asked Jun 23, 2014 by sreemathi.v

1 answer

Find the coefficient of $a^5b^7$ in $(a-2b)^{12}$

asked Jun 23, 2014 by sreemathi.v

1 answer

Expand each of the expressions:$\big(\large\frac{2}{x}-\frac{x}{2}\big)^5$

asked Jun 20, 2014 by sreemathi.v

1 answer

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