I don't know if this neccessarily belongs in the calculus section, but it's for my calculus class.(adsbygoogle = window.adsbygoogle || []).push({});

How would you go about finding the limit as x approaches 0 for

(1-cos(x))/2sin^2(x)

I know the answer is 1/4(unless I copied it down wrong :/ ) , but what first steps would you take to evaluating thing. Also this is for my review packet where we just know the basics of derivatives, so the only knowledge I should be going by are my trig identities and that the limit as x approaches 0 for sinx/x =1.

Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Limit problem!

**Physics Forums | Science Articles, Homework Help, Discussion**