Question

if 64 x square + y square = 72 and xy= 2 finde ( 4 x + y / 2) square​

Answer 1

Answer:

{(8x)^2+y^2}^2=64x^2+y^2+2.8x.y

=72+16×2=104

{(8x)^2+y^2}^2=104

[2{(4x)2+y/2}]^2=104

4{(4x)^2+y/2}^2=104

{(4x)^2+y/2}^2=104/4=26 Ans