f(x)=log(x+√(x²+1)) How to find the values f^-1(x) and f^-1(y)???...
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Let y=log(x+(x2+1)−−−−−−−√ )
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√ (ey−x)2=x2+1
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√ (ey−x)2=x2+1 e2y−2xey+x2=x2+1
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√ (ey−x)2=x2+1 e2y−2xey+x2=x2+1 e2y−1=2xey
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√ (ey−x)2=x2+1 e2y−2xey+x2=x2+1 e2y−1=2xey x=e2y−12eyex
Let y=log(x+(x2+1)−−−−−−−√ )So. ey=x+(x2+1)−−−−−−−√ ie. ey−x=(x2+1)−−−−−−−√ (ey−x)2=x2+1 e2y−2xey+x2=x2+1 e2y−1=2xey x=e2y−12eyex So. f−1(x)=12(e(2x)−1)
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