Solving equation with natural log with inverse hyperbolic

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SUMMARY

The discussion focuses on solving the equation ln(sinh-1(x)) = 1, where sinh-1(x) is defined as asinh. The correct approach involves recognizing that sinh-1(x) = ln(x + sqrt(x^2 + 1)). By exponentiating both sides, the equation simplifies to sinh-1(x) = e. The final step requires applying the sinh function, leading to the conclusion that x = sinh(e). This solution clarifies the misunderstanding regarding multiplication and emphasizes the correct sequence of operations.

PREREQUISITES
  • Understanding of natural logarithms and their properties
  • Familiarity with inverse hyperbolic functions, specifically asinh
  • Knowledge of the sinh function and its relationship with asinh
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the properties of inverse hyperbolic functions, focusing on asinh and its applications
  • Learn about the relationship between exponential functions and logarithms
  • Explore the derivation and applications of the sinh function
  • Practice solving equations involving natural logarithms and hyperbolic functions
USEFUL FOR

Students studying calculus or advanced algebra, particularly those focusing on hyperbolic functions and logarithmic equations.

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Homework Statement



Solve ln(sinh-1(x)) = 1
(Just give the formula for x, no calculator is necessary)
sinh-1(x) = asinh


Homework Equations





The Attempt at a Solution



When I did this, I knew sinh-1(x) = ln(x + sqrt.(x^2 +1), but the equation would look like
ln(ln(x + sqrt.(x^2 + 1 )) = 1, which looks weird because I don't what to do afterwards
So then I tried exponentiate both sides and it will be asinh(x) = e then multiplying both sides by sinh, so my answer is x = sinhe, is this right?
 
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You do NOT 'multiply both sides by sinh'- there is no multiplication involved here! After you take the exponential of both sides you have sinh-1(x)= e. Now take sinh of both sides of that: sinh(sinh-1(x))= sinh(e).

What is sinh(sinh-1(x))?
 
oh sorry, What i meant was "take" not "multiply" even though i typed multiply -_-

ok so then, sinh(sinh-1(x)) = sinh-1(sinh(x)) = x ?
 

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