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Ifxissmall, so thatx ^ 2andhigherpowerscan beneglected,thentheapproximatevalue for((1- 2x ) ^( -1)(1- 3x ) ^( -2)) /((1 - 4 x) ^( -3)) |
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Answer» `1 - 2x` `=(1 -2x ) ^(-1) ( 1 - 3x ) ^(-2)( 1 - 4x ) ^3 ` `=(1+2x+4x ^ 2+… )( 1 +6x+…)( 1 - 12 x ) ` `= (1+ 8X )( 1 - 12 x ) ` `= 1 -4 x ` |
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