/sci/ - Science & Math

Anonymous Mon Dec 8 18:53:11 2014 No.6934315 [View]
File: 11 KB, 206x211, 971249_820126854668381_2725094117305312151_n.jpg [View same] [iqdb] [saucenao] [google]

>>6934204
Ahh you used this >>6934279 identity now i'm a step ahead.
>>6934279
sinA−sinB=2cos((A+B)2)Sin((A−B)2)
2*cos((x+50+x-50)/2)*sin((x+50-x+50)/2)
Alright cool! This makes sense!

2*cos((x+50+x-50)/2)*sin((x+50-x+50)/2)
2*cos((2x)/2)*sin((2x+100)/2)
2*cos(2x/2)*sin(2x+100/2)
2*cosx*sin2x+50

What did I do wrong?

>mfw i don't get 2sin(50)cos(x)

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/sci/ - Science & Math

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