Change of subject of formula - Jamb Mathematics Past Questions and Answers

Question 26:

• JAMB 1992

Make t the subject of formula S = ut + \(\frac{1}{2} at^2\)

A. \(\frac{1}{a}\) (-u + \(\sqrt{U^2 - 2as}\))
B. \(\frac{1}{a}\) {u \(\pm\) (U² - 2as)}
C. \(\frac{1}{a}\) {u \(\pm\) \(\sqrt{2as}\)}
D. \(\frac{1}{a}\) {-u + \(\sqrt{( 2as)}\)}

Question 27:

• JAMB 1993

Make x the subject of the relation \(\frac{1 + ax}{1 - ax}\) = \(\frac{p}{q}\)

A. \(\frac{p + q}{a(p - q)}\)
B. \(\frac{p - q}{a(p + q)}\)
C. \(\frac{p - q}{apq}\)
D. \(\frac{pq}{a(p - q)}\)

Question 28:

• JAMB 1995

Find T in terms of K, Q and S if S = 2r(\(\piQT + K)

A. \(\frac{S^2}{2 \pi r^2Q} - \frac{k}{Q}\)
B. \(\frac{S^2}{2 \pi r^2Q}\) - k
C. \(\frac{S^2}{4 \pi r^2Q} - \frac{k}{Q}\)
D. \(\frac{s^2}{4 \pi r^2Q}\)

Question 29:

• JAMB 1995

Find T in terms of K, Q and S if S = 2r(\(\piQT + K)

A. \(\frac{S^2}{2 \pi r^2Q} - \frac{k}{Q}\)
B. \(\frac{S^2}{2 \pi r^2Q}\) - k
C. \(\frac{S^2}{4 \pi r^2Q} - \frac{k}{Q}\)
D. \(\frac{s^2}{4 \pi r^2Q}\)

Question 30:

• JAMB 1997

Make F the subject of the formula t = \(\sqrt{\frac{v}{\frac{1}{f} + \frac{1}{g}}}\)

A. \(\frac{gv-t^2}{gt^2}\)
B. \(\frac{gt^2}{gv-t^2}\)
C. \(\frac{v}{\frac{1}{t^2} - \frac{1}{g}}\)
D. \(\frac{gv}{t^2 - g}\)