If the length of the diagonal of a square is (a + b), then the area of the square will be:
(a+b)2
12(a+b)2
(a2+b2)
12(a2+b2)
Diagonal = √2 side
or side =a+b√2
Area = side2=(a+b√2)2=(a+b)22 .
The maximum value of the expression y=2(a−x)(x+√x2+b2) is
Simplify: (a−b)2+4ab