(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

(secx-1)/x^2 limit x--->0

2. Relevant equations

secx=1/cosx

(1-cosx)/x=0

3. The attempt at a solution

I have done obvious thing, solved to make secent cosine and got common denominators in the top portion of the fraction, then subtracted. Ended up with {(1-cosx)/cosx}/x^2.

So when x-->0 its still 0/0 which isn't good. I'm pretty sure that i have to somehow get it to be (1-cosx)/x because we learned that identity in calc a while back, and I am not sure if i just dont remember something from that to apply to this physics, or if I am approaching it all wrong.

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# Homework Help: Stupid trig simplifying

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