make R subject in:I=√E/R² W²L² make a subject in: s=n/2(2a n-1)d) make x the subject in :x/s-1 t/r 1=1?

ADE.me

4 years ago

S=n/2[2a + (2a+(n-1)d]
S=n/2[2a + (2a+ nd-d]
S=n/2[2a + 2a + nd-d]
S=n/2[4a + nd - d]
2S= n(4a+nd-d)
2S=4an + dn^2 - nd
2S - 4an = dn^2-nd
2S-4an= d(n^2 -n)
d(n^2-n)=2S-4an
D.B.S.B n^2 - n
d(n^2-n)/n^2-n=(2S-4an)/n^2-n
d= (2S - 4an)/n^2 -n