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sinx
1/cscx
cscx
1/sinx
cosx
1/secx
secx
1/cosx
tanxx
1/cotx
tanx
sinx/cosx
cotxx
1/tanx
cotx
cosx/sinx
sinĀ²0+cosĀ²0
=1
1+tanĀ²0
=secĀ²0
1+cotĀ²0
cscĀ²0
cos-1x/arcosx
ā1-xĀ²
son-1x/arcsinx
arccos/cos-1ā1-xĀ²
sin(a+b)
sina cosb +- cosa sinb
cos(a+b)
cosa cosb +- sina sinb
sin(20)
2sin0cos0
cos(20)=cosĀ²0-sinĀ²0
=1-2sinĀ²0=2cosĀ²0-1