Matte del B Flashcards
1
Q
arcsin(-x)
A
-arcsin(x)
2
Q
arctan(-x)
A
-arctan(x)
3
Q
arccos(-x)
A
π-arccos(x)
4
Q
tan(x)=k
A
x=arctan(k)+πn
5
Q
sin(x)=k
A
x=arcsin(k)+2πn
=π-arcsin(k)+2pπn
6
Q
cos(x)=k
A
x=arccos(k)+2πn
=-arccos(k)+2πn
7
Q
acos(v)+bsin(v)=
A
(rotenur(a^2+b^2))*sin(v+arctan(a/b)+nπ)
där
n=0 om b>0
n=1 om b<0
8
Q
r=|z|
arg(z)=
A
r=|z|=rotenur(Re^2+Im^2)
arg(z)=arctan(Im/Re) om Re>0
=π+arctan(Im/Re) om Re<0
9
Q
a^3-b^3=
A
a^3-b^3=(a-b)(a^2+ab+b^2)
10
Q
a^3+b^3=
A
a^3+b^3=(a+b)(a^2-ab+b^2)
11
Q
pascals triangel
A
12
Q
tan(2v+π/3)=tan(4v-π/6)
A
D(VL)= vDelAvR; 2v+π/3≠π/2+πn
D(HL)=vDelAvR; 4v-π/6≠π/2+πn
<=>
D(VL)= vDelAvR; v≠ bla bla bla
D(HL)=vDelAvR; v≠ bla bla bla
