<p>Math 175 is a much more condensed version of the 170 sequence. It moves faster and also starts right into vectors and three dimmensional curves etc. 170 on the other hand works with series and sequences for the first few weeks and then you hit the multivariable stuff very late in the semester.</p>
<p>Math170 is definitely easier, however depending on your goals it might be better to take 175. What are you planning on doing?</p>
<p>Edit: On second thought, unless your a hopeful math major (maybe engineering or Physics as well), take the Math 170 sequence. Especially if your pre-med, you’ll need two semesters.</p>