formulas for precalc
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | f(x)=a^x
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| natural exponential function | show 🗑
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| n compoundings per year | show 🗑
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| continuous compounding | show 🗑
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| exponential growth model | show 🗑
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| exponential decay model | show 🗑
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| show | y=ae^(((-x-b)^2)/c), b>0
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| show | y=a/(1+be^(-rx))
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| logarithmic model | show 🗑
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| logarithmic model | show 🗑
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| show | s=r * theta(in radians)
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| show | arc length/time (s/t)
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| show | central angle/time (theta/t)
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| show | sin t=y
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| show | cos t= x
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| tangent function | show 🗑
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| show | cot t=x/y, y can't be 0
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| cosecant function | show 🗑
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| show | sec t=1/y, y can't be 0
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| show | # degree * pi(radians)/180(degrees)
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| converting radians to degrees | show 🗑
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| finding arc length | show 🗑
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| show | sq rt(s*s-a*s-b*s-c)
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| law of sines | show 🗑
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| law of cosines (SSS,SAS) for side a | show 🗑
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| law of cosines (SSS,SAS) for side b | show 🗑
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| show | c^2 = a^2 + b^2 - 2ab(cos C)
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| show | cos A = (b^2 + c^2 - a^2)/ 2bc
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| law of cosines (SSS,SAS) for angle B | show 🗑
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| show | cos C = (a^2 + b^2 - c^2)/ 2ab
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| show | 1/2 cb sinA
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| area of a triangle | show 🗑
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| show | 1/2 ab sinC
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| show | II v II or I v I = II < a,b > = sq rt (a^2 + b^2)
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| show | v1 i + v2 j
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| show | v = II v II (cos #)i + II vII (sin #)j
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| law of cosines (with vectors) | show 🗑
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| dot products | show 🗑
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| show | a = r cos#
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| sin# = b/r (rewriting trig form of complex #s) | show 🗑
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| show | I a + bi I
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| trig form of a complex # | show 🗑
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| show | z1z2 = r1r2 (cos(#+$) + i sin(#+$))
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| dividing complex #s in trig form | show 🗑
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| DeMoivre's Therom | show 🗑
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| show | n rt(z) =n rt(r) * (cos((#+2k*pi)/n) + i sin((#+2k*pi)/n))
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| show | a(sub n)=a1 + d(n-1)
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| sum of a finite arithmetic sequence | show 🗑
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| partial sum of an aritmetic sequence | show 🗑
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| sum of a finite geometric sequence | show 🗑
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| sum of an infinite geometric sequence | show 🗑
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| increasing annuity | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
selfstudy08
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