F3 Use of the formulae

2007-08-10 12:09 am
in each of thefollowing , change the variable in the bracket into the subject of the formula.
PLz show the steps><

y =√(x³ - z) {x}

T= 2π √(L / g) {g}

A(1+r%)² = s {r}

回答 (1)

2007-08-10 12:18 am
✔ 最佳答案
x=(y^2+z)^(1/3)
T^2/4π^2=L/g
g=4Lπ^2/T^2
r=100(s/A)^0.5-100

2007-08-09 16:21:03 補充:
y^2=x^3-z step for (1)x=(y^2 z)^(1/3)(1 r%)^2=s/A1 r%=(s/A)^0.5r=100(s/A)^0.5-100 steps for (3)


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