Geometrie ex 6 Flashcards
1
Q
sin(x+y)
A
sinx cosy + siny cosx
2
Q
sin(x-y)
A
sinx cosy - siny cosx
3
Q
cos(x+y)
A
cosxcosy-sinxsiny
4
Q
cos(x-y)
A
cosxcosy+sinxsiny
5
Q
sinp+sinq
A
2sin(p+q)/2*cos(p-q)/2
6
Q
sin pi/6
A
1/2
7
Q
cos pi/6
A
rad3/2
8
Q
tg pi/6
A
rad3/3
9
Q
ctg pi/6
A
rad3
10
Q
sin pi/4
A
rad2/2
11
Q
Tg pi/4
A
1
12
Q
tgx
A
sinx/cosx
13
Q
ctgx
A
cosx/sinx
14
Q
sin2x
A
2sinxcosx
15
Q
cos2x
A
cos^2x-sin^2x
