quick question (1 Viewer)

[SGSII]

Hi guys,
How do you solve this:
cos2x = 2x/3
Thanks!

 

[andybandy]

You would draw a graph, and see where they intersect

 

[obliviousninja]

You would draw a graph, and see where they intersect

That will clearly be helpful
._.

 

[SGSII]

So is there no way to do it algebraically?
Cos Im not that great solving it graphically

 

[HeroicPandas]

So is there no way to do it algebraically?
Cos Im not that great solving it graphically

i can only think of approximating the solution through halving-the-interval method or newton's method

 

[Carrotsticks]

There is no way to solve that.

Best you can do is approximate a solution via graphical means (remember to use radians!)

 

[SGSII]

Alrightie thanks guys!

 

[andybandy]

That will clearly be helpful
._.

I was thinking of drawing it, but didnt know where to online
http://fooplot.com/#W3sidHlwZSI6MCw...jb2xvciI6IiMwMDAwMDAifSx7InR5cGUiOjEwMDB9XQ--
hope this well help you visualise