<p>Quiz tomorrow. I don't understand a single bit of it.</p>
<p>How would I do lim (θ->0) 1-cosθ/θ^2? You pull the 1-cosθ/θ out, which equals 0. Then what do you do with the lim of 1/θ?</p>
<ul>
<li><p>lim (x->0) tanx/x?</p></li>
<li><p>lim (x->0) 1/x^2 sin^2(x/2)</p></li>
<li><p>lim (x->0) xsecxcscx</p></li>
<li><p>lim (x->0) x^2 csc2xcot2x</p></li>
</ul>
<p>Thanks for any help!</p>