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anonymous
 5 years ago
can someone help with verifying a trig function?
anonymous
 5 years ago
can someone help with verifying a trig function?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0try us? lols won't know till you post the question

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[(\sin \theta\cos \theta)^{2}=12\sin^{2} \theta \cot \theta , Verify?\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm going to skip the theta sign so here goes sin^2  2sin*cos + cos^2 = 1  2sin^2(cos/sin) sin^2  cos^2 = 1 1  2 sin*cos = 1  2sin(cos they are equal make sense?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you but just give me a second to make sure i got it

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how did you get to sin^2  2sin*cos + cos^2 = 1  2sin^2(cos/sin)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0where did the 2sin come from specifically

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i foiled the left side of the equation and tangent is equal to sin/cos so cot is equal to cos/sin

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(a  b)^2 a^2 2ab + b^2 it's foil

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0does that make sense?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i think im having trouble with the foiling

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0umm do you know how to foil? (a  b)(a  b) a^2  ab  ab + b^2 (sin  cos)(sin  cos) sin^2  sin*cos  sin*cos + cos^2 sin^2  2sin*cos + cos^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay thank you for yor help i see what i was doing wrong, i was foiling wrong, little rusty on the algebra

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hey you have time for another?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Sec^4tan^4, what trig function is it equal to?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01/cos^4  sin^4/ cos^4 (1  sin^4) / cos^4 cos^2 + sin^2 = 1 so cos^2 = 1  sin^2 [(1  sin^2)(1 + sin^2)]/ cos^4 (1 + sin^2)/ cos^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm not sure if you can get more simplified than that..

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sin^2 = 1  cos^2 (1 + 1  cos^2)/ cos^2 (2  cos^2) / cos^2 2sec^2  1 there that's one trig function

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the choices are A) Sec^2 B) csc C) tan D) Sec^2+tan^2 E) sin^2 F) sin*tan

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the answer is D where i stopped first (1 + sin^2)/ cos^2 if you divide that out you'll get sec^2 + tan^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ohh man thanks that one was killin me lol just for my own knowledge where do you start first when you see a problem like that? like what goes through your mind first?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i hate doing trig functions all i can say is something that you've probably heard 100s of times practice but seriously, the more you practice, the easier it is key hints cos^2 + sin^2 = 1 < super big and useful tan = sin/cos there are also the rarer ones half angle formulas

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0just move the functions around until you see something familiar and you'll see things to cancel out your object to make it as simple as possible

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok cool keep those in mind i have one question, how did you go from [(1  sin^2)(1 + sin^2)]/ cos^4 to (1 + sin^2)/ cos^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i wrote before that line that cos^2 = 1  sin^2 which i got from sin^2 + cos^2 = 1 see? very useful since those are equal, i canceled from top and bottom does that make sense?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes i see it now, and i see how you were left with the answer. your helping me out big time lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright ive got another one for you ive been trying it for a while but keep hittin dead ends, got time?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01/2(1+sin/cos+cos/1+sin) , what trig function is equal? Sin cos tan csc sec cot

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0cos/1? you sure, caz that's just cos

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh i see you need to use parenthesis rocco, otherwise there's a lot of miss understandings

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh and the first part is (1+sin)/cos

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i feel quite useless....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0give me some time, i'm going to write this out, sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no problem, and ure not useless dont worry about that lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0rocco i have no luck for this one :x sorry! repost this one

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok no prob, found another one, wanna take a crack at it, i thnk i got half of it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok its csc  cot = 1/ (csc + cot) verify

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(csc  cot)(csc + cot) = 1 csc^2  cot^2 = 1 ^ that's another rule you should remember

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ohh but can you cross the = sign when verifying?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm not sure i understand what you mean?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0somewhere i heard that when you verify the = becomes like a wall that you cant cross and only work on either side to make them equal, maybe im just understanding your work wrong

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i don't think i've heard that rule 2 + 4 = 8  2 if i add 2 on to both sides (crossing?) i get 6 = 6 do you mean crossing like this?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it's perfectly fine as i just shown up there LOL 6 is equal to 6 so it's fine cheers ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ohh i see, haha thanks youve been a big help!!!
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