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Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: lhl_anecar on October 31, 2010, 03:53:19 pm

Title: differentiating of trigo
Post by: lhl_anecar on October 31, 2010, 03:53:19 pm

Any idea how do i differentiate this,

1-sin x / (1+sin x) using chain rule?

thanks!

Title: Re: differentiating of trigo
Post by: Tyserius on November 03, 2010, 01:15:44 am

I'll give you a hint as a start. Try multiplying the top and the bottom by (1-sin x). You should get something familiar in the bottom and try work from there. It should work :)