# data[].attributes.body
Cos(2a)=cos2a-sen2a
cos(2a)=2 cos2a-1
cos(2a)=1- 2sen2a
tan(2a)=2tana/1-tan2a

# data[].attributes.body
sen(a+b)=sena.cosb+cosa.senb
cos(a+b)=cosa.cosb-sena.senb
tan(2a)= 2tana/1-tan2a

# data[].attributes.body
senx+y < senx.cosy+cosx.cosy

cosx+y  <cosx.cosy-senx-seny

tanx+y  <tanx+tany/1-tanx.tany

# data[].attributes.body
sen(2α)=2.senα.cosα
cos(2α)=cos²α-sen²α
tan(2α)=(2tanα)/(1-tan²α)

# data[].attributes.body
Cos(2a)=cos2a-sen2a
cos(2a)=2 cos2a-1
cos(2a)=1- 2sen2a
tan(2a)=2tana/1-tan2a

# data[].attributes.body
•sen(a+b)=sena.cosb+cosa.senb
•sen(a+a)=sena.cosa+cosa.cosa
•sen(2a)=2sena.cosa
•cos(2a)=cos²a-sen²a
•cos(2a)=2cos²a-1
•cos(2a)=1-sen²a

# data[].attributes.body
Sen(a+b)=sen(a).cos(b)+sen(b).cos(a)
Cos(a+b)=cos(a).cos(b)-sen(a).sen(b)
Tan(a+b)=[tan(a)+tan(b)]/[1-tan(a).tan(b)]

# data[].attributes.body
sen2x=2senx-cosx
cos2x = cos²x-sen²x
tan2x = 2tanx/1-tan²x

# data[].attributes.body
sen(α+β)=senα.cosβ+cosα.senβ
sen(α+α)=senα.cosα+cosα.senα
tan(2α)=2tanα/1-tan2α)

# data[].attributes.body
sen2x=2senx cosx
cos2x=cos2x-sen2x
tan2x=2tanx/1-tan2 x
cos2x= 1-2sen2x / cos2x=2cos2x - 1

# data[].attributes.body
1)sen2x=2senx.cox
2)cos2x=cos*2x-seen*2x
3)tan2x=2tanx/1-tan*2x

# data[].attributes.body
sen(a+b)=senA.cosB+cosA.cosB
cos(a+b)=cosA.cosB-senA-senB
tan(a+b)=tana+tanb/1-tana.tanb

# data[].attributes.body
sen2a=sena*cosa
cos2a=cos^2a-sen^2a
tan2a=(2tana)/1-tan^2a

# data[].attributes.body
sen(a+b)=sena.cosb+cosa.senb
sen(a+a)=sena.cosa+cosa.sena
sen(2a)=2sena.cosa
cos(2a)= cos2a - sen2a
cos(2a)=2cos2-1
cos(2a)= 1-sen2a

# data[].attributes.body
Cos(2α)=cos2α-sen2α
cos(2α)=2 cos2α-1
cos(2α)=1- 2sen2α
tan(2α)=2tanα/1-tan2α

# data[].attributes.body
sen(A+B)=senA*cosB+cosA*senB
sen(A+A)=senA*cosA+cosA*senA
sen(2A)=2senA*cosA
---------------------------------
cos(2A)= cos2A - sen2A
cos(2A)=2cos2-1
cos(2A)= 1-2sen2A

# data[].attributes.body
cos(2β)=cos2β-sen2β
cos(2β)=2cos2β-1
cos(2β)=1-2sen2β
tan(2β)=2tanβ/1-tan2β

# data[].attributes.body
cos(2@) =  cos^2@ - sen^2@
cos(2@) = 2cos^2@-1
cos(2@) = 1-2sen^2@
tan(2@)= 2tan@ / 1-tan^2@

# data[].attributes.body
sen(a+b)=sena.cosb+cosa.cosb
cos(a+b)=cosa.cosb-sena-senb
tan(a+b)=(tana+tanb)/(1-tana.tanb)