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`int(x^(x)-e^(-x))/(e^(x)+e^(-x))dx` का मान ज्ञात कीजिए । |
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Answer» माना `I=int(e^(x)-e^(-x))/(e^(x)+e^(-x))dx` और `" "e^(x)+e^(-x)=t` `rArr" "(e^(x)-e^(-x))dx=dt` `therefore" "I=int(1)/(t).dt=log|t|+c` `" "=log|e^(x)+e^(-x)|+c` |
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