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owlet
 one year ago
I'm wrong. My solution is wrong I think. Please help me. Question below
owlet
 one year ago
I'm wrong. My solution is wrong I think. Please help me. Question below

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owlet
 one year ago
Best ResponseYou've already chosen the best response.0My solution is also iincluded

owlet
 one year ago
Best ResponseYou've already chosen the best response.0question: Solve \(\sf csc^2 x 1 = 4 cos^2x\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.3\(\large\color{black}{ \displaystyle \csc^2x1=4\cos^2x }\) \(\large\color{black}{ \displaystyle \cot^2x=4\cos^2x }\) \(\large\color{black}{ \displaystyle \left[\cos^2x~/~\sin^2x\right]=4\cos^2x }\) \(\large\color{black}{ \displaystyle 1/\sin^2x=4 }\) \(\large\color{black}{ \displaystyle 1/\sin^2x=1/{~~}(^1/_4) }\) \(\large\color{black}{ \displaystyle \sin^2x=1/4 }\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.3this is what I would start off.

owlet
 one year ago
Best ResponseYou've already chosen the best response.0then take the square root right? so you'll also end up with sin x = positive/negative 1/2

owlet
 one year ago
Best ResponseYou've already chosen the best response.0oh i think i get it.. I'm missing sin x= 1/2 which is Pi/6 so my solution is really messy. I'll try to do it again. thanks!

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.3* sin(x) = ½ * or * sin(x) =  ½ *

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1443623788259:dw

owlet
 one year ago
Best ResponseYou've already chosen the best response.0i'll start all over again, and I'll check if I'll get it right again.
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