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 one year ago
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
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

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

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

Hoa
 one year ago
Best ResponseYou've already chosen the best response.1if 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

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