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Use basic identities to simplify the expression. one divided by cotangent of theta to the second power. + sec θ cos θ
 3 months ago
 3 months ago
Use basic identities to simplify the expression. one divided by cotangent of theta to the second power. + sec θ cos θ
 3 months ago
 3 months ago

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help!!!!!Best ResponseYou've already chosen the best response.1
please help me! I am taking precalc online and don't understand a single thing about basic identities
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
so its \(\huge \dfrac{1}{\cot^2 \theta + \sec \theta \cos \theta} \)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
firstly, use the identity that sec theta = 1/cos theta so, sec theta cos theta = 1 and do you know what is \(\large 1+\cot^2 \theta = ... ?\)
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
only the cot^2theta is the denominator
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
no I don't know, I am COMPLETELY lost in this subject
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
okk., so anyways you can use sec theta cos theta = 1 \(\large \dfrac{1}{\cot^2 \theta }+1 \)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
now 1/ cot theta = tan theta so, \(\large \tan^2 \theta+1 \)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
and ther's a standard pythagorean identity that \(\large 1+\tan^2 \theta = \sec^2 \theta \) thats it! :)
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
can you walk me through another please?
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
Simplify the expression. quantity cosecant of x to the power of two times secant of x to the power of two divided by quantity secant of x to the power of two plus cosecant of x to the power of two.
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
dw:1389469428352:dw
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
\(\large \dfrac{\csc^2 x \sec^2 x }{\sec^2 x + \csc^2 x }\)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
ok, we use the identity that csc x = 1/ sin x sec x = 1/cos x
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
\(\large \dfrac{\csc^2 x \sec^2 x }{\sec^2 x + \csc^2 x } = \large \dfrac{\sin^2 x \cos^2 x }{\sin^2 x + \cos^2 x }\)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
now we can use the famous pythagorean identity \(\Large \color{red}{\sin^2x + \cos^2 x =1 }\)
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
what remains is your answer! :)
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
so the answer is just 1? or am I wrong?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
denominator = 1 yes what remains is numerator sin^2 x cos^2 x
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
you have choices for this too ?
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
yes I do the choices are: sin^2x cos^2x 1 1
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
im sorry im so stupid. im usually really good at math but precalc just makes no sense to me
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
oops, i did a simplification error \(\large \dfrac{\csc^2 x \sec^2 x }{\sec^2 x + \csc^2 x } = \large \dfrac{1 }{\sin^2 x + \cos^2 x } = 1\)
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
okay and i have a question. next year I planned on taking ap stat. is that anything like precalc because i hope not. is it easier or harder?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
if you practice less, math is hard. if you practice more, math is easy. irrespective of any topic/subject
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
well are the concepts of ap stat very similar to or very different to those of precalculus?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
statistics is a different branch of math altogether, so very different.
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
i just think I'm not good at online class taking because I learn better from an actual person rather than a computer screen. I need the physical classroom environment and a teacher to give me instruction.
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
what kind of problems does ap stat entail? word problems? graphs?
 3 months ago

help!!!!!Best ResponseYou've already chosen the best response.1
oh okay thank you soooooo much! is there anything else that i should know?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
try to take up easy questions before going to harder ones. if you get stuck anytime, OpenStudy is always Open for you :)
 3 months ago
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