2002
Mathematics
JAMB
ake r subject of the formula given that x/r+a = a/r
A.
a2/(x−a)
B.
a2/(x+a)
C.
a/(x - a)
D.
a/(x + a)
Correct Answer: a2/(x−a)
Explanation
x/r+a = a/r ⟹ rx = ar + a2 rx − ra = a2 ⟹ r = a2/ (x−a)
x/r+a = a/r ⟹ rx = ar + a2 rx − ra = a2 ⟹ r = a2/ (x−a)THIS WEEK's
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