Fórmulas de trigonometría Flashcards
1
Q
sen(x+y)
A
senxcosy+senycosx
2
Q
cos(x+y)
A
cosxcosy-senxseny
3
Q
tg(x+y)
A
(tgx+tgy)/(1-tgx*tgy)
4
Q
sen(2x)
A
2senx*cosx
5
Q
cos(x-y)
A
cosxcosy+senxseny
6
Q
tg(x-y)
A
(tgx-tgy)/(1+tgx*tgy)
7
Q
sen(x-y)
A
senxcosy-senycosx
8
Q
cos(2x)
A
(cosx)^2-(senx)^2
9
Q
tg(2x)
A
2tgx/[1-(tgx)^2]
10
Q
sen(x/2)
A
raíz[(1-cosx)/2]
11
Q
cos(x/2)
A
raíz[(1+cosx)/2]
12
Q
tg(x/2)
A
raíz[(1-cosx)/(1+cosx)]
13
Q
senx+seny
A
2sen[(x+y)/2]*cos[(x-y)/2]
14
Q
senx-seny
A
2cos[(x+y)/2]*sen[(x-y)/2]
15
Q
cosx+cosy
A
2cos[(x+y)/2]*cos[(x-y)/2]
16
Q
cosx-cosy
A
2sen[(x+y)/2]*sen[(x-y)/2]
17
Q
senx*cosx
A
1/2[sen(x+y)+sen(x-y)]
18
Q
cosx*cosy
A
1/2[cos(x+y)+cos(x-y)]
19
Q
senx*seny
A
1/2[cos(x+y)-cos(x-y)]
20
Q
Teorema del seno
A
a/senA=b/senB=c/senC
21
Q
Teorema del coseno
A
a^2=b^c+c^2-2bc*CosA
