Mathematics
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OpenStudy (anonymous):
Simplify trig identity
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OpenStudy (anonymous):
OpenStudy (anonymous):
@jim_thompson5910 the answer i got was Sin(A)+Cos(A) but apparently it is wrong :(
OpenStudy (anonymous):
@e.mccormick
OpenStudy (e.mccormick):
Well, let me look...
OpenStudy (e.mccormick):
First, did you do this?
\[\frac{1+\cot A}{\csc A}\implies \frac{1+\frac{\sin A}{\cos A}}{\frac{1}{\sin A}}\]
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OpenStudy (anonymous):
yes except for cotA i put \[\cos A/\]
OpenStudy (anonymous):
sorry CosA/Sin A
OpenStudy (anonymous):
tan is \[\sin A/\cos A\]
OpenStudy (e.mccormick):
Oh, yah... LOL It would be that.
OpenStudy (e.mccormick):
\[\frac{1+\frac{\cos A}{\sin A}}{\frac{1}{\sin A}}\implies
\left[1+\frac{\cos A}{\sin A} \right]\cdot \frac{\sin A}{1}\]
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OpenStudy (e.mccormick):
OK... Then.... ummmm.... how the heck is that wrong!
OpenStudy (anonymous):
Yeah! i have no idea. i actually put it in twice just to make sure but nope it wrong
OpenStudy (e.mccormick):
Did you try reversing them? Who knows. ANd putting in the () just like they have it?
OpenStudy (anonymous):
nope..it didnt work
jimthompson5910 (jim_thompson5910):
maybe it's case sensitive
try cos(A) instead of Cos(A)
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jimthompson5910 (jim_thompson5910):
but yeah I'm getting cos(A) + sin(A) or sin(A) + cos(A) too
OpenStudy (anonymous):
i didnt have to type it..the button for cos is there already so i just click that
jimthompson5910 (jim_thompson5910):
ok show us how you're inputting the answer, maybe that will help
OpenStudy (anonymous):
OpenStudy (anonymous):
those are all the answers
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jimthompson5910 (jim_thompson5910):
well the only option not covered is cos(a) + sin(a)
but that's basically the same as the other options
OpenStudy (anonymous):
yeah and I only have one more answer left so i dont want to risk it loll
jimthompson5910 (jim_thompson5910):
I would bring this up with a teacher and the teacher will be able to fix the error
OpenStudy (anonymous):
maybe i will just ask my professor thanks to everyone that helped me out!!
OpenStudy (anonymous):
does anyone know how to do this \[\cot (x)/\csc(-x)\]
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OpenStudy (anonymous):
@e.mccormick
OpenStudy (e.mccormick):
Simplify, solve, what?
jimthompson5910 (jim_thompson5910):
cot(x) = cos(x)/sin(x)
-------------------------
csc(-x) = 1/sin(-x)
csc(-x) = 1/(-sin(x))
csc(-x) = -1/sin(x)
jimthompson5910 (jim_thompson5910):
use those facts to simplify
OpenStudy (anonymous):
simplify
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OpenStudy (e.mccormick):
Yah, even odd properties.
OpenStudy (anonymous):
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