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Cards (19)
sin^2
+
cos^2
= 1
tan=
sin
/
cos
sin=
CO/H
cos=
CC/H
tan=
CO
/
CC
SIN^2 =
1
-
cos
^2
cos^2=
1-sin^2
sin (a+b)=
sina
x
cosb
+
cosa
x
sinb
sin (a-b)=
sina
x
cosb
-
sinb
x
cosa
cos (a+b)=
cosa
x
cosb
-
sina
x
sinb
cos(a-b)=
cosa
x
cosb
+sina
x
sinb
tan (a+b)= (
tana+tanb
)/(
1-tanb
x
tanb
)
tan (a-b)= (
tana
-
tanb
)/(
1+tana
x
tanb
)
sin (
2a
)=
2sina
x
cosa
cos(2a
)=
cos^2a -sin^2a
tan(
2a
)= (
2tana
)/(
1-tan^2a
)
a^2=
b^2 + c^2 -2cb x cosA
b^2=
a^2+c^2 -2ac x cosB
c^2=
a^2+ b^2-2ab x cosC