Jambmaths question:
Make R the subject of the formula if $T=\frac{K{{R}^{2}}+M}{3}$
Option A:
$\sqrt{\frac{3T+K}{M}}$
Option B:
$\sqrt{\frac{3T-M}{K}}$
Option C:
$\sqrt{\frac{3T+M}{K}}$
Option D:
$\sqrt{\frac{3T-K}{K}}$
Jamb Maths Solution:
$\begin{align} & T=\frac{K{{R}^{2}}+M}{3} \\ & \text{Multiply both sides by 3} \\ & 3T=K{{R}^{2}}+M \\ & \text{Subtract M}\text{from both sides} \\ & 3T-M=K{{R}^{2}} \\ & \text{Divide both sides by }K \\ & \frac{3T-M}{K}={{R}^{2}} \\ & \text{Take the square root of both sides} \\ & R=\sqrt{\frac{3T-M}{K}} \\\end{align}$
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