Trig on Math II

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1

<p>How much trig is on the math II test typically and how difficult is it? </p>

<p>I'm having trouble with trig problems, like these Barron's questions:</p>

<p>If the equation sec^2(x) - tan(x) - 1 = 0 has n solutions between 10 and 350 degrees, then n =...</p>

<p>For all x, tan(x) + cos(x) + tan(-x) + cos(-x) =...</p>

<p>The period of the function f(x) = k cos kx is pi/2. The amplitude of f is...</p>

<p>I have a feeling that these actually are easy, but I'm just really bad at trig. Are some of the trig questions on the test around this level? If so, then I'm gonna have to do some intense studying.</p>

2

<p>Use a graphing calculator and you’re basically set as long as you did well in pre-calc</p>

3

<p>

Yes.
10 char</p>

4

<p>They seem a bit more difficult than the ones on the actual test, but as schoolisfun said, just use a graphing calculator (with or without CAS) and you’re set (as long as you know how to use it).</p>

5

<p>Thanks for your answers! (:</p>

<p>Oh right, I was doing the questions without a calculator because I was too lazy to get it out of my bag haha. Will a calculator work for most of the more difficult trig on the test?</p>

<p>Btw I skipped precalculus which is partly why I’m bad at trig. (The other reason is that I HATE IT WITH A BURNING PASSION ASDFJKL;. <- should probably change that attitude.)</p>

6

<p>You skipped precal? How the heck do people get along without trig in higher level math? I’ve used trig extensively all the way through the calculus sequence and differential equations. I don’t think you can really get along without it in physics either. </p>

<p>Maybe you should try watching videos at Khan Academy.</p>

7

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<p>It should, if you know how to input stuff like sec(x) into your calculator (you need to use 1/(cos(x)) because there is no sec(x) button on most calculators).</p>