Qualification > Math

differentiating of trigo

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lhl_anecar:
Any idea how do i differentiate this,

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

thanks!

Tyserius:
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 :)

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