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anonymous
 one year ago
Which equation is not an identity?
tan(–t) = –tan t
tan t(csc t + cot t) = sec t + 1
sin tcot t = cos t
cos2t − sin2t = –1
anonymous
 one year ago
Which equation is not an identity? tan(–t) = –tan t tan t(csc t + cot t) = sec t + 1 sin tcot t = cos t cos2t − sin2t = –1

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Shalante @oldrin.bataku

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i feel like it is d but in like 50% sure

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1I've seen \[\cos^2t\sin^2t \] before. I think it was one of the identities for cos2t

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1yeah... there's also another identity which is \[\large \cos^2t+\sin^2t=1 \] but rearranging them a bit gives me \[\large \cos^2t=1\sin^2t \] \[\large \sin^2t=1\cos^2t \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0d was right lol this stuff is so confusing

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438846787051:dw

UsukiDoll
 one year ago
Best ResponseYou've already chosen the best response.1one big huge trig list........and parts of it exist beyond trig.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay i posted another question do you think you could help me on that one as well?
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