7.Binomial Theorem
hard

${(3 + 2x)^{50}}$ के विस्तार में महत्तम पद है, जहाँ $x = \frac{1}{5}$

A

$5$वाँ

B

$51$वाँ

C

$7$वाँ

D

$6$वाँ

(IIT-1993)

Solution

${3^{50}}{\left( {1 + \frac{{2x}}{3}} \right)^{50}}$

$\therefore \,\,\,\frac{{{T_{r + 1}}}}{{{T_r}}} \ge 1\,\,\, \Rightarrow 102 – 2r \ge 15r \Rightarrow r \le 6$

Standard 11
Mathematics

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