FP2 series helpWatch
where f(x) = ln(cosx), f'(x) = -tanx and f''(x) = -sec2 x
- Study Helper
In the book there's a question which says find the maclaurins series for lncosx using differentiation and I'm finding it difficult to do I searched Google for a way on how to do it but it seems something beyond a level?
and the expansion of cos begins 1 - x2/2
What are you finding difficult? Presumably you know what the definition of a Maclaurin series is, and how to find the coefficients by repeated differentiation...
Perhaps u shouldve been more exact on what I needed help with