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Double and half angle formulas
Basic trig stuff
10
Mathematics
11th Grade
05/23/2007
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Term
Double Sin
 Definition
2 Sin Cos
Term
Double Cos (Sin and Cos)
 Definition
Cos^2 - Sin^2
Term
Double Cos (Sin)
 Definition
1 - 2 Sin^2
Term
Double Cos (Cos)
 Definition
(2 Cos^2) - 1
Term
Double Tan
 Definition
2 Tan
-------
1-Tan^2
Term
Half Sin
 Definition
square root
+/-

1-Cos
-------
2
Term
Half Cos
 Definition
square root
+/-

1+Cos
-------
2
Term
Half Tan (Cos and Cos)
 Definition
square root
+/-

1-Cos
-------
1+Cos
Term
Half Tan (Sin and Cos)
 Definition
Sin
-------
1+Cos
Term
Half Tan (Cos and Sin)
 Definition
1-Cos
-------
Sin
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