Application of implicit differentiation

[elisaflemer]

Hi!
Could anyone help me figure out what I'm doing wrong? The correct answer is 0.311254.

 

[lex]

You have your calculator in Degrees, not Radians.

 

[elisaflemer]

You have your calculator in Degrees, not Radians.

Oh my God, thank you so much! I was using a calculator app, so I must have overlooked it. I spent half an hour on that question, geez! Thanks again!

 

[lex]

Easily done.