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aussy123
Group Title
x = 135, cos 2x = 1  2 sin2x
True
False
I think its true, but when I was using the unit circle, I couldnt find 135
 one year ago
 one year ago
aussy123 Group Title
x = 135, cos 2x = 1  2 sin2x True False I think its true, but when I was using the unit circle, I couldnt find 135
 one year ago
 one year ago

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aussy123 Group TitleBest ResponseYou've already chosen the best response.0
@Chlorophyll can you help me, please?
 one year ago

Hoa Group TitleBest ResponseYou've already chosen the best response.1
hi friend, your problem is \[\cos 2x = 1  2 \sin^2 x ?\]
 one year ago

Hoa Group TitleBest ResponseYou've already chosen the best response.1
if mine is right, so, the answer is true. if yours is right, the answer is false. why? because we have a formula for that trig: it's mine. it's true with any value of x. Hope this helps
 one year ago

aussy123 Group TitleBest ResponseYou've already chosen the best response.0
Thanks you, I was having a big problem with this, and I moved to the next questions. Thank YOU SO MUCH!
 one year ago

Hoa Group TitleBest ResponseYou've already chosen the best response.1
thanks for your medal.
 one year ago
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