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14 Cards in this Set

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sec^2@=
1+tan^2@
csc^2@=
cot^2@+1
sin(a+b)=
sinacosb+cosasinb
sin(a-b)=
sinacosb-cosasinb
cos(a+b)=
cosacosb-sinasinb
cos(a-b)=
cosacosb+sinasinb
tan(a+b)=
(tana+tanb)/(1-tanatanb)
tan(a-b)=
(tana-tanb)/(1+tanatanb)
sin2u=
2sinucosu
cos2u=
cos^2u-sin^2u
2cos^2u-1
1-2sin^2u
tan2u=
(2tanu)/(1-tan^2u)
sin(u/2)=
____________
| (1-cosu)/2
cos(u/2)=
____________
| (1+cosu)/2
tan(u/2)=
___________________
| (1-cosu)/(1+cosu)

(1-cosu)/sinu
sinu/(1+cosu)