<p>3a+ 3b (equivalent to calc. bc) = 31a+ some of 31b. 3c is stats. and 32a is multivariable calc so the 3 series IS much easier.</p>
<p>3a+ 3b (equivalent to calc. bc) = 31a+ some of 31b. 3c is stats. and 32a is multivariable calc so the 3 series IS much easier.</p>