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`2x+2/(9x)=4` तो `27x^(3)+1/(27x^(3))` का मान क्या है?A. 180B. 198C. 234D. 252 |
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Answer» Correct Answer - B `2x+2/(9x)=4` Multiply by `3/2` on both sides `3x+1/(3x)=6` Taking cube on both sides `(3x+1/(3x))^(2)=(6)^(3)` `27x^(3)+1/(27x^(3))+3xx3x xx 1/(3x)` `(3x+1/(3x))=216` `27x^(3)+1/(27x^(3))+3xx6=216` `27x^(3)+1/(27x^(3))` `=216-18=198` |
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