Ask your own question, for FREE!
Mathematics 69 Online
OpenStudy (anonymous):

proof: (1+tanx) / (1+cotx) = tan x

sam (.sam.):

(1+tanx)/(1+cotx)=tanx (1+(sinx)/(cosx))/(1+(cosx)/(sinx)) ((cosx+sinx)/(cosx))/(1+(cosx)/(sinx)) ((cosx+sinx)/(cosx))/((sinx+cosx)/(sinx)) (sinx)/(sinx+cosx)*(cosx+sinx)/(cosx) sinx*(1)/(cosx) (sinx)/(cosx) tanx

sam (.sam.):

QED

sam (.sam.):

If you don't understand just ask :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!