Exponential inequalities

10092015, 10:54 AM
Post: #1




Exponential inequalities
Hi there, it's Aries here ;)
I was checking some exponential function inequalities: solve(3root(2^(4*x1))>=(2^(x5))/(4root(16^x))), the calculator reboots. Typing solve(2^((4*x1)/3)>=(2^(x5))/(16^(x/4))), all is ok, the calculator returns the correct answer (x>=(7/2)). Another example: solve(2^(3*x1)+2^(6*x2)2^(3*x+3)<(4^(3*x2))), the calculator gives the advise "Warning, solving parametric inequation requires assumption on parameters otherwise solutions may be missed. The solutions are UNABLE TO ISOLATE x IN..... Why happens this ? Is it due to some sort of complexity or what ? Is there a "workaround" to solve this kind of inequations ? Thanks all for the explanations, Aries ;) 

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Messages In This Thread 
Exponential inequalities  Aries  10092015 10:54 AM
RE: Exponential inequalities  roadrunner  10102015, 10:35 AM
RE: Exponential inequalities  parisse  10102015, 11:58 AM
RE: Exponential inequalities  Aries  10112015, 10:20 AM
RE: Exponential inequalities  Aries  10172015, 09:06 AM
RE: Exponential inequalities  Tim Wessman  10102015, 01:54 PM
RE: Exponential inequalities  Aries  10112015, 06:39 AM
RE: Exponential inequalities  roadrunner  10102015, 11:03 PM
RE: Exponential inequalities  Aries  10112015, 10:23 AM
RE: Exponential inequalities  parisse  10172015, 04:15 PM
RE: Exponential inequalities  Aries  10252015, 10:53 AM

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