Loading [MathJax]/jax/output/SVG/jax.js
 
+0  
 
0
912
3
avatar

f(x)=e^x-1+2x-3

and the question is 

inverted function of x (f^-1(x))=0

please answer with steps

 Jul 9, 2015

Best Answer 

 #3
avatar+118696 
+5

hi anon,

This is an inverse function question                   (Factorials are something completely different)

 Jul 11, 2015
 #1
avatar+118696 
+5

 

f(x)=ex1+2x3Lety=f(x)y=ex1+2x3y=ex+2x4DomainxRandrangeyR$andbothxandyarebothmapped1to1totheother$$Soitisokformetojustgoingtoswapxandyover$$theinversefunctionis$x=ey+2y4Ify=0thenx=e0+204=14=3

 

 f1(x)=0whenx=3

 

Here is the graph

 

https://www.desmos.com/calculator/lb12iqyjf0

 Jul 10, 2015
 #2
avatar
+5

Thanks a lot.Now I know how to solve equations with inverted factorial.I wish you the best!

 Jul 10, 2015
 #3
avatar+118696 
+5
Best Answer

hi anon,

This is an inverse function question                   (Factorials are something completely different)

Melody Jul 11, 2015

2 Online Users

avatar