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For $| x | < \large\frac{1}{5}$, the coefficient of $x^3$ in the expansion of $\large\frac{1}{(1-5x)(1-4x)}$ is :
\[\begin {array} {1 1} (1)\;369 & \quad (2)\;370 \\ (3)\;371 & \quad (4)\;372 \end {array}\]
jeemain
eamcet
math
2010
q8
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Sep 26, 2013
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meena.p
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(a) 369
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Nov 7, 2013
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pady_1
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