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Make R the subject of the formula if T frac KR ... - JAMB Mathematics 2011 Question

Make R the subject of the formula if T = \(\frac {KR^2 + M}{3}\)
A
\(\sqrt\frac{3T - K}{M}\)
B
\(\sqrt\frac{3T - M}{K}\)
C
\(\sqrt\frac{3T + K}{M}\)
D
\(\sqrt\frac{3T - K}{M}\)
correct option: b

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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