Make x the subject of the relation d = {6/x - y/2}

Correct Answer is : x = 122d2+y12/2d² + y2d2+y12

Correct Answer is : x = 122d2+y12/2d² + y2d2+y12

Test Index

WAEC Mathematics 2017 Paper

Question : 29

Total: 49

\sqrt{\frac{6}{x} - \frac{y}{2}}

Solution:

d = $\sqrt{\frac{6}{x} - \frac{y}{2}}$

$d^2 = \frac{6}{x} - \frac{y}{2}$

$2xd^2 = 12 - xy$

$2xd^2 + xy = 12$

x = $\frac{12}{2d^2 + y}$

Go to Question:

Prev Question

Next Question