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cotx = ?
1/tanx or cosx/sinx
secx = ?
1/cosx
cscx = ?
1/sinx
sinx = ?
1/cscx
cosx = ?
1/secx
tanx = ?
1/cotx
sinx/cosx
cos
2
x + sin
2
x = ?
1
1 + tan
2
x = ?
sec
2
x
cot
2
x + 1 = ?
csc
2
x
cos(A - B) = ?
cosAcosB + sinAsinB
cos(A + B) = ?
cosAcosB - sinAsinB
sin(A - B) = ?
sinAcosB - cosAsinB
sin(A + B) = ?
sinAcosB + cosAsinB
tan(A - B) = ?
(tanA - tanB)/(1 + tanAtanB)
tan(A + B) = ?
(tanA + tanB)/(1-tanAtanB)
sin2x = ?
2sinxcosx
cos2x = ?
cos
2
x - sin
2
x
1 - 2sin
2
x
2cos
2
x - 1
tan2x = ?
(2tanx)/(1-tan
2
x)
1 - sin
2
x = ?
cos
2
x
1 - cos
2
x = ?
sin
2
x
sec
2
x - tan
2
x = ?
1
sec
2
x - 1 = ?
tan
2
x
csc
2
x - cot
2
x = ?
1
csc
2
x - 1 = ?
cot
2
x
tanxcotx = ?
1
cosxsecx = ?
1
sinxcscx = ?
1
sin
2
x/cos
2
x = ?
tan
2
x
cos
2
x/sin
2
x = ?
cot
2
x
1/sec
2
x = ?
cos
2
x
1/cot
2
x = ?
tan
2
x
1/csc
2
x = ?
sin
2
x
Author
Anonymous
ID
215565
Card Set
Trigonometric Identities
Description
Trig Identities
Updated
2013-04-24T19:26:28Z
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