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anonymous
 5 years ago
Please help with Trig Identities... tried it, but continued to get stuck at the end... Prove by working one side:
(cos x/ 1+ sin x)  ( 1sin x/ cos x)= 0
anonymous
 5 years ago
Please help with Trig Identities... tried it, but continued to get stuck at the end... Prove by working one side: (cos x/ 1+ sin x)  ( 1sin x/ cos x)= 0

This Question is Closed

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cos(x)/(1+sin(x)) ?? is that corrrect?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0id assume yes, since cos(x)/1 would be futile :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0add the right "term" to the right side of the (=) for starters

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cos x 1sin x  =  1+sin cos

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0not = it is ...... it equals 0

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you should use algebraic techniques to "prove" the statement. All I did was move ((1sin)/cos) to the other side for the moments :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if we cross multiply we get: cos^2 = (1sin)(1+sin)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i dont understand... im so confused

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cos^2 = 1  sin^2 which is true

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0are you trying to just work one side and not manipulate it to your whim?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes only working one side to prove the other

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0you could try decomposing fractions..... maybe if you want to try that way

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i ended up at: (1 sin ^2 x  1 sin x)/ cos x

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cos 1sin    = 0 1+sin cos ok....yeah, get like denominators and such...same thing I did pretty much: cos^2  (1sin^2)  = 0 cos(1+sin)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0now we see that cos^2  (cos^2) = 0 so that whole thing is 0

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0how did you get to this? (1 sin ^2 x  1 sin x)/ cos x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0because cos ^2 = 1  sin ^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you for helping me
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