Simplifying Trig Expressions.notebook
1
November 02, 2016
Mar 2112:11 PM
Goals
~To simplify trig expressions~
Mar 2112:12 PM
sin2θ + cos2θ = 1
Simplifying Trig Expressions
Recall:
tan2x =
cot2x =
sec2x =
csc2x =
sin2θ + cos2θ = 1
What if we divide everything by sin2θ? By cos2θ ?
sin2θ + cos2θ = 1
Simplifying Trig Expressions.notebook
2
November 02, 2016
Mar 2111:58 AM
from the unit circle (i.e. any of the six trigonometric functions)
Mar 2112:17 PM
7. sin2x ‐ 1 8. sinxcotx 9. sinθcscθcotθ
10. cosx tanx cscx
11. 2 ‐ 2cos2θ 12. secθcotθ
Simplifying Trig Expressions.notebook
3
November 02, 2016
Mar 248:42 AM
33. cot2x ‐ cos2xcos2x
Nov 211:49 AM
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