Question

if p⁴/q²×x/y =81/16 and x =y ;p,q € N,then p/q+1 is a)1.75 b)7.5 c)0.075 d)0.75​

Answer 1

Answer:

Given P≡(1,0)

let Q≡(2t

2

,4t), (Since a=2)

Let mid point of PQ be (h,k)

⇒h=

2

2t

2

+1

,k=

2

4t+0

=2t

Eliminating t we get k

2

−4h+2=0

Hence locus of mid point of PQ is, y

2

−4x+2=0