Question

Make y the subject of the relation

Py² = 9y² + 4

using your
your answer in 2c. (1) above
find the value of y if p=12 and q=3

Answer 1

Part 1

`Py^2=9y^2+4\\\\y^2(P-9)=4\\\\y^2=(4)/(P-9)\\\\y=\pm \sqrt{(4)/(P-9)}`

Part 2

`y=\pm \sqrt{(4)/(12-9)}=\pm \sqrt{(4)/(3)}`