InterviewSolution
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`y=tan^(-1)((3x-x^(3))/(1-3x^(2)))` का अवकलन x के सापेक्ष ज्ञात कीजिए, जबकि`xgt1/3` |
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Answer» `xgt1/(sqrt3)` `rArrtanthetalt1/(sqrt3)` `rArr1/(sqrt3)lttanthetaltoo` `rArrpi/6ltthetaltpi/2` `rArrpi/2lt3thetalt(3pi)/2` `rArr-pi/2lt3theta-piltpi/2` `thereforey=tan^(-1)(tan3theta)` `rArry=tan^(-1)[tan(3theta-pi)]` `rArry=3theta-pi` `y=3tan^(-1)x-pi` `therefore(dy)/(dx)=3/(1+x^(2))-0` `rArr(dy)/(dx)=3/(1+x^(2))` |
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