COCOMO is a model used for

If √m + (1/√m) = 7, then find the value of m + (1/m).

If n = 6 + √13, then find the value of (n + 1/n)².

If (a + b) = 13 and (a² + b²) = 85, then find the value of (a × b).

If x + y + z = 20, x² + Y² + z² = 160 and x z = y², then find the value of x z?

If (5x + 2)³ + (x – 1)³ + 8(3x – 7)³ = 6(5x + 2) × (x – 1) × (3x – 7), then the value of (5x + 3) is 

If x⁴ + x ^{- 4} = 47 then find the value of (x + x^-1).

If (4x + 3y): (28x - y) = 1: 5, then what is the value of (3x ²  + 4y ² ): (7x ²  + 2y ² )?

If (a² + 1/a²) = 51, then find the value of (a³ - 1/a³).