<p>here we go
last q's</p>
<p>do we have to know</p>
<p>sin(a+b) type stuff
half angle formulas
confidence intervals</p>
<p>also tan(X+2) will shift the graph 2 units left?</p>
<p>also for periods of these what do u do</p>
<p>sin(3X+pi/2)</p>
<p>is it just 2pi over the whole ting or just the 3X</p>
<p>i have a feeling ur using the barron's book, right. a lot of that stuff doesn't even come up on the actual test, or as so i have heard. i will be taking it tomorrow....</p>
<p>nah im using PR
but im just asking random things from my precalc class this year that i rlly dont wanna have 2 look through my textbook if i dont have 2</p>
<p>als</p>
<p>I dont think Math 2 requires sin(a+b) or half angle formulas</p>
<p>For the sin(3x + pi/2) (which is of the form sin(Bx + C)), the period is 2pi/abs(B), where B = 3 here, so the period 2pi/3. And abs is absolute value.</p>
<p>i didn't find any
sin(a+b) on PR, so no is my guess</p>
<p>
[quote]
also tan(X+2) will shift the graph 2 units left?
[/quote]
</p>
<p>I believe so.</p>
<p>also for periods of these what do u do</p>
<p>
[QUOTE]
sin(3X+pi/2)</p>
<p>is it just 2pi over the whole ting or just the 3X
[/QUOTE]
</p>
<p>Just the 3x. Only the coefficients on the x matter.</p>
<p>sin(a+b) = sinAcosB + cosAsinB it just switches.</p>
<p>confidence intervals?</p>
<p>Never seen confidence intervals come up...</p>
<p>I AM SO NERVOUS
PLUS IM NOT EVEN TAKING IT IN MY SCHOOL
i live outside of LA and gotta trek all the way into a public high school in downtown which is like 45 mins away</p>
<p>ahhhh</p>
<p>So scared too! ahhh! plus haven't even really taken a formal course in precalc so i really have to pray for a test on a the easier side. Hopefully not too much parametric and polar. Cause I SUCK at those AHHH!</p>
<p>i dont even know what parametric is so......</p>
<p>Confidence intervals are from stats and probably won't turn up on the test.</p>
<p>lol confidence intervals will 100% NOT be on the test, and as for parametric equations...i dont know how to do those either!!!</p>
<p>parametric are easy...im hoping for them to turn up. </p>
<p>please no solids lol..i hate solids....freaking cudnt they put calculus on this instead....personalyl i find calc easier. =p</p>
<p>Everyone Relax.
It's much better for you than freaking out over Parametrics. </p>
<p>If you need explanatinos Sparknotes and Wikipedia have great FREE explanations on things.</p>