<p>hello im stuck again !! :s
im reviewing the math level 1 sparknotes book and i really don't know whats up with those trig identities !! Can anyone please explain?
I really need your help i have no clue what they are and the book doesnt make a difference!
please !!
thanks in advance</p>
<p>bump </p>
<p>anyone??</p>
<p>Have you tried searching online, like on google or something? I know there are a lot of websites that explain them in lots of detail.</p>
<p>Trig identities are just like what they sound. One set of trig expressions that equal another. i.e. sin²x+cos²x=1</p>
<p>So if you have a problem like (1-cos²x)/sinx= the answer would be sinx.
You just have to memorize them to be able to recognize them on the test.</p>
<p>Hope this helps.</p>
<p>i tried searching online but i found nothing useful can someone list them or something??
iim also having a hard time with radians degrees,graphing coordinate trig functions,amplitudes they're just so forgein to me i seriously need help !
pleaase im desparate :(</p>
<p>anyone?? bump</p>
<p>Have you taken trigonometry?</p>
<p>im studying on my own and i havent set my foot in a math class since the 10th grade thats all i took so ...
:(</p>
<p><a href="http://www.purplemath.com%5B/url%5D">www.purplemath.com</a> for math help</p>
<p>u must know all trig formulas except, sum to product, product to sum, and triple angle identities</p>