Cheatography
https://cheatography.com
All formulas of measurement in fbise kpk tb board
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Radian
Number of radians=arc length/radius of same circle |
q= S/r |
If one revolution is 360°, radians will be circumference/radius. This will give us 2πr/r and therefore 2πrad=360 and finally, 1 rad=57.3° (after dividing) |
This also proves that 1rad in one revolution=2π |
Steradian
Number of steradians in sphere= area of sphere/r2. Thus, steradians in sphere=4π |
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Uncertainties
Sum and Difference |
The normal values always follow the given operation however, the uncertainties ALWAYS get added |
Product and Quotient |
The normal values always follow the given operation however, the uncertainties are first converted into %, added and finally converted back (only if needed) |
Power |
The normal value gets solved as normal however, the uncertainty is converted into %, multiplied to the given power and finally converted back (only if needed) |
Significant Figures
Addition and Subtraction |
Krd |
Multiplication and Division |
Oks |
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