Solve the problem [hlp]

[Arash63]

Hello;
What is the solution of following problem?

y=Arcsin(sinx) ===> y'=?

 

[pthoppay]

Ans=1

 

[cheng]

Please, understand that this forum is not substitute for school or textbooks. Probably you misunderstood what this forum is all about

 

[irfan1]

please try to solve your problems before bringing them to the the board. Even you google these, you will find enough resources. And this is not a "help my homework" board

 

[hamidr_karami]

hi arash63

answer is cos(x)/(1-sin(x)^2)^(1/2)

 

[pthoppay]

cos(x)/(1-sin(x)^2)^(1/2)=1

Prakash

 

[hamidr_karami]

hi pthoppay
exactly !!!!

 

[tantoun2004]

Hi everyone,
Just a quick note :
The formula you put(cos(x)/(sqrt(1-sin^2(x)) can be simplified easily into 1
That's because y=arcsin(sin(x))=x
and hence y' =1
Regards

 

[hamidr_karami]

hi tantoun2004
arcsin(sin(x))=x if -pi/2<x<pi/2
because sin(x) in -pi/2<X<pi/2 is one to one
hamid karami

 

[papu]

cos(x)/(1-sin(x)^2)^(1/2)=1