![S= \frac{n}{2 [2a + (n - 1)d]}](/tpl/images/0586/3181/008a0.png)
![s=\frac{n}{2 [2a + (n - 1)d] } = \frac{n}{2[2a + dn - d] }](/tpl/images/0586/3181/6e92f.png)
on both sides
to the right hand side by subtracting 
,C. Make n subject of the formula
S= n/2 [2a + (n - 1)d]
please provide your working...
Mathematics, 07.04.2020 15:13 bellam302
C. Make n subject of the formula
S= n/2 [2a + (n - 1)d]
please provide your working out
Answers: 1
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