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kaylala
Group Title
topic: PROVING IDENTITIES
(SEE COMMENTS)
(trigonometry)
 8 months ago
 8 months ago
kaylala Group Title
topic: PROVING IDENTITIES (SEE COMMENTS) (trigonometry)
 8 months ago
 8 months ago

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kaylala Group TitleBest ResponseYou've already chosen the best response.0
\[[(\sec C1)\div(\sec C +1)]=[(1\cos C)\div(1+\cos C)]\]
 8 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
just one identity, sec C = 1/cos C
 8 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
rest is just algebraic simplification
 8 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
you have to prove it.. like there'd be a solution or way it will turn out to be equal @hartnn
 8 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
thats correct, take the left side (sec C 1)/ (sec C+1) now since sec C = 1/cos C replace every sec C on left side by 1/cos C thats the first step what do u get ?
 8 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
i really don't get what you mean @hartnn
 8 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
to prove that identity , we need to prove that left side = right side. so we take left side, (sec C 1)/ (sec C+1) we can now use all the known identities here, the one which will be useful here will be sec C = 1/ cos C so, we get our first step as, (1/cos C 1)/(1/cos C +1) does this make sense ?
 8 months ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.0
@hartnn already showed you what to do...are you having trouble with simplifying the fractions?
 8 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
oh i see now did i do it right?
 8 months ago

kaylala Group TitleBest ResponseYou've already chosen the best response.0
but my BIG question is how do you do it? you know, how to start the process and know that this identity is the one that should be used... and not the others. any tip? @hartnn @dumbcow
 8 months ago
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