Question

f x and y satisfy the relation ax 2 + by2 = ab, Prove that the extreme values of the function u = x 2 + xy + y 2 are given by the roots of the equation 4 (u – a) (u – b) = ab.​

Answer 1

Answer:

i have answer d

Step-by-step explanation:

u-a +u-b= x2+xy+y2

Answer 2

Answer:

good morning friends have a great