- #1
Alem2000
- 117
- 0
The qeustion was what is the 50th dy/dx of F(x)=Cos(2x)
this is what i did
1st------dy/dx=-2Sin(2x)
2nd------dy/dx=-4Cos(2x)
3rd-------dy/dx=8Sin(2x)
4th-------dy/dx=16Cos(2x)
5th-------dy/dx=-32Sin(2x)...now that it reapeated itself its time to figure out the 50th. that's where I am confused. My problem is with the negative signs. how can i catch that patteren...
this is what i did
1st------dy/dx=-2Sin(2x)
2nd------dy/dx=-4Cos(2x)
3rd-------dy/dx=8Sin(2x)
4th-------dy/dx=16Cos(2x)
5th-------dy/dx=-32Sin(2x)...now that it reapeated itself its time to figure out the 50th. that's where I am confused. My problem is with the negative signs. how can i catch that patteren...