## anonymous 4 years ago Find lim 1-sec^2x over cosx-1, x->0.

1. anonymous

maybe some algebra first, since this is like $\frac{1-\frac{1}{a^2}}{a-1}=\frac{a+1}{x^2}$ so you are starting with $\frac{\cos(x)+1}{\cos^2(x)}$

2. anonymous

replace x by 0 and you will get the answer

3. anonymous

i get 2

|dw:1328536691804:dw|

|dw:1328536983535:dw|

6. anonymous

Thank you guys :(