JAMB - Mathematics (2011 - No. 10)

Make R the subject of the formula if T = \(\frac {KR^2 + M}{3}\)
\(\sqrt\frac{3T - K}{M}\)
\(\sqrt\frac{3T - M}{K}\)
\(\sqrt\frac{3T + K}{M}\)
\(\sqrt\frac{3T - K}{M}\)

Explanation

T = \(\frac{KR^2 + M}{3}\)

3T = KR2 + M

KR2 = 3T - M

R2 = \(\frac{3T - M}{K}\)

R = \(\sqrt\frac{3T - M}{K}\)

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