Respuesta :

Answer:

Step-by-step explanation:

cos(11) = .9816271834  so now what we have is

.9816271834 = sin(x)

Find x by taking the inverse sin of .9816271834 by hitting your 2nd button and the sin button.  What you have on your screen now is

[tex]sin^{-1}([/tex]  Now enter the decimal after the parenthesis and hit your equals button.  You should get x = 78.999999999 so we'll just round that to 79