Trig Derivate Questions (1 Viewer)

[Fadee]

Here it is:



Can you derive that, showing all working out please

Idk how to get the final answer ...

 

[thongetsu]

2(sinx - cosx) . (cosx + sinx)

2(sin^2x - cos^2x)

that's sin squared x and cos squared x btw.

 

[Fadee]

2(sinx - cosx) . (cosx + sinx)

2(sin^2x - cos^2x)

that's sin squared x and cos squared x btw.

Answer in the back says 0

 

[thongetsu]

what Q is this in fitzpat?

 

[Fadee]

what Q is this in fitzpat?

17(f) question 40 i think .

 

[thongetsu]

nvm i found it DUDE I WAS RIGHT fark man you gotta look at the Qs more properly you were looking at Q 41. This one is 40.

 

[Fadee]

nvm i found it DUDE I WAS RIGHT fark man you gotta look at the Qs more properly you were looking at Q 41. This one is 40.

Alright thanks

So i was right

 

[hscishard]

Imagine it said simplify. What would you put? -2cos2x or 2(2sin^x -1) or 2(1-2cos^x)

 

[thongetsu]

any i guess