This is a draft cheat sheet. It is a work in progress and is not finished yet.
log values
NUMBER |
LOG VALUES |
1 |
0 |
2 |
0.301 |
3 |
0.4771 |
4 |
0.6020 |
5 |
0.6989 |
6 |
0.7781 |
7 |
0.845 |
8 |
0.903 |
9 |
0.9542 |
10 |
1 |
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TRIGONOMETRIC IDENTITIES
Sin2x+Cos2x = 1 |
1+tan2x = Sec2x |
1+Cot2x = Cosec2x |
Sin(x+y)= Sinxcosy+Cosxsiny |
Sin(x-y) =Sinxcosy - Cosxsiny |
Cos(x+y)= Cosxcosy - Sinxsiny |
Cos(x-y)= Cosxcosy + sinxsiny |
Tan(x+y) = Tanx + tany/1- tanxtany |
Tan(x-y) = Tanx- tany/ 1+ tanxtany |
Cot(x+y) = CotxCoty-1/Cotx+Coty |
Cot(x-y)= CotxCoty-1/Coty-Cotx |
Cosec(x+y)=Cosecxcosecy/Cotx+Coty |
Cosec(x-y)= cosecx.cosecy/cotx-coty |
Sec(x+y)=SecxSecy/1-Tanxtany |
Sec(x-y)=secxsecy/1+tanxtany |
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