Maths 主項

a) F = mv2 / r [m]
Fr=mv2
m=(Fr)/v2



b) s = n/2(a-b) [b]
2s(a-b)=n
2as-2bs=n
2bs=2as-n
b=a – n/2s



c) n = (a+b)/a [a]
an=a+b
an-a=n
a(n-1)=n
a=n/(n-1)



d) v = u + at [a]
v-u=at
a=(v-u)/t



e) a(1+x) = bx [x]
a+ax=bx
ax-bx=-a
x(a-b)=-a
x=-a/(a-b)



f) w + s = aw [w]
aw-w=s
w(a-1)=s
w=s/(a-1)



g) (1-x)/a = b/c [x]
1-x=(ab)/c
x=1 - (ab)/c



h) 1-(x/a) = (b/c) [x]
x/a=1 – b/c
x=a- (ab)/c