+0  
 
0
172
5
avatar

how do I get from sin(α) to α?

 

Example:

 

sin(α) = -0.6049270855483636374

α = ?

 

Thanks in advance!

 Nov 27, 2018
edited by Guest  Nov 27, 2018
 #1
avatar+20217 
0

Use the ARCSIN function....also known/labelled as   asin   sometimes    and sometimes as sine inverse (sin^-1)

   On the web2.0 calc    hit the 2nd button and sin becomes   asin.....

 Nov 27, 2018
 #2
avatar
+1

Thanks for the quick response!

 

I tried the asin function on the web2.0calc, but I didn't got what I wanted.

 

I typed:

sin(46) and got 0.901788347649

 

but when I tried to reverse it back to 46 I got this:

 

asin(0.901788347649) equals 1.123889803847.

 

Am I doing it right?

 Nov 27, 2018
 #3
avatar+20217 
0

On the web2.0 calculator    hit the   2nd button     then the 'sin' button changes to 'asin'   hit that button...

   then enter ' -0.6049270855483636374'   and hit ' = '

 

NOTE :   In lower left corner whether you want degrees or Radians !

 Nov 27, 2018
 #4
avatar
+1

The problem was indeed with the calculator setted on Rad instead of Deg...angry

 

Thank you very much for your help!

 Nov 27, 2018
 #5
avatar+20217 
0

Ahhhhh......  Deg  or  Rad   gets everyone at least once in a while!    cheeky

ElectricPavlov  Nov 27, 2018

30 Online Users