Precalc Formulas
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6 Terms
1
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sin(2@)
2sin@cos@
2
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cos(2@)
cos²@-sin²@ or 2cos²@-1 or 1-2sin²@
3
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tan(2@)
2tan@/1-tan²@
4
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sin@/2
½ (1-cos@)
5
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cos @/2
½ (1+cos@)
6
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tan (@/2)
1-cos@/1+cos@ or sin@/1+cos@ or 1-cos@/sin@
Note 
Flashcards (22)