front 1 sin(theta/2) | back 1 sin(theta/2)= +- root 1-cos(theta) divided by 2 |
front 2 cos(theta/2) | back 2 cos(theta/2)= +- root 1+cos(theta) divided by 2 |
front 3 sin (2theta) | back 3 sin(2theta) = 2sin(theta)cos(theta) |
front 4 cos (2theta) #1 | back 4 cos(2theta)=cos^2(theta)-sin^2(theta) |
front 5 sin (a+b) | back 5 sin(a)cos(b)+cos(a)sin(b) |
front 6 sin (a-b) | back 6 sin(a)cos(b)-cos(a)sin(b) |
front 7 Cos(a+b) | back 7 cos(a+b)= cos(a)cos(b)-sin(a)sin(b) |
front 8 Cos(a-b) | back 8 cos(a+b)= cos(a)cos(b)+sin(a)sin(b) |
front 9 tan(a+b) | back 9 tan(a)+tan(b)/1-tan(a)tan(b) |
front 10 tan(a-b) | back 10 tan(a)-tan(b)/1+tan(a)tan(b) |
front 11 cos(2theta) #2 | back 11 cos(2theta) = 1-2sin^2(theta) |
front 12 cos(2theta) | back 12 cos(2theta) = 2cos^2-1 |
front 13 tan(2theta) | back 13 2tan(theta) = 2tan(theta)/1-tan^2(theta) |
front 14 tan(a/2) #2 | back 14 sin(theta)/cos(theta)+1 |
front 15 tan(a/2) #3 | back 15 1-cos(theta)/sin(theta) |
front 16 What is an even function? | back 16 A function that stays the same even when f(x)=f(-x) |
front 17 What is an odd function? | back 17 A function where -f(x)=f(-x) |
front 18 What are the three Pythagorean identities? | back 18
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front 19 What is the law of sines? | back 19 ![]() |
front 20 What is the law of cosines? | back 20 ![]() |
front 21 What is the Sin area formula? | back 21 ![]() |
front 22 What is Heron's Law? | back 22 ![]() |
front 23 What is the log change of base formula? | back 23 ![]() |
front 24 What are the three log properties? | back 24 ![]() |