Prove A^2 + B^2 = (a^2 +b^2) (c^2 + d^2) (e^2+ f^2) (g^2+h^2)

So me with this math problem. find the value of x the table shows the masses of 50 eggs. mass: 40-44 eggs: 6 mass: 45-49 eggs: x mass: 50-54 eggs: 12 mass: 55-59 eggs: 10 mass: 60-64 eggs: 7 mass: 65-69 eggs: 2 you!

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Evaluate cos2θ for cosθ = square root of 3/2