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T0mmy Group TitleBest ResponseYou've already chosen the best response.0
Doesn't make sense
 one year ago

mathmate Group TitleBest ResponseYou've already chosen the best response.1
When in doubt, draw a sketch: dw:1357770541986:dw The sketch is for 0<=x <=2pi. The general solution requires the form x=.... +2k pi where k is an integer.
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
still do not get it
 one year ago

mathmate Group TitleBest ResponseYou've already chosen the best response.1
You will need to solve for sin(x)=cos(x) between 0 and 2pi. The same solution will be valid if you add 2k pi to the obtained solution. Are you able to find the solution between 0 and 2pi?
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
look is the answer pi/2 +n(pi)(0,+/1,+/ 2
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.0
Looking at the unit circle is another way to do it if you've learned that. When are the cos and sin values identical?
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
I tried about everything what is the answer
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
dw:1357780533732:dw
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
so it is pi/2 + n(pi)
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
http://www.wolframalpha.com/input/?i=solve+cosxsinx%3D0
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
yes one solution is that..
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
ok thank you i think i get it now
 one year ago

cinar Group TitleBest ResponseYou've already chosen the best response.0
I meant pi/4+2npi
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
the other is 7pi /4 + 2npi
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.0
it should be pi/4 +2npi and 5pi/4 + 2npi
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
i dont have a answer like that it is just pi/4 +2npi and 7pi /4 + 2npi. the answer with 5pi/4 + 2npi is paired with 3pi/4 + 2npi
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.0
I don't know what the question is exactly but the solution to sinx=cosx is definitely x=pi/4 +2npi and x=5pi/4 + 2npi
 one year ago

TNNG Group TitleBest ResponseYou've already chosen the best response.0
Find all solutions to the equation. cos x = sin x is the question they are asking
 one year ago

BluFoot Group TitleBest ResponseYou've already chosen the best response.0
Well then their answer is wrong!
 one year ago

mathmate Group TitleBest ResponseYou've already chosen the best response.1
dw:1357774360119:dw
 one year ago
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