If  and xy = 1, the value of  is

If  and  then the value of  is

• 
• 

• 2

• 2

If  then the value of  is

If  the value of  is

• 91

• 234

• 243

• 243

If  then the value of  is

• 

• 2

• 
• 

6.

For two positive numbers a and b, if a² + b² = 24 and ab = 6, then (a³ + b³) is equal to

• 96

• 10

• 102

• 102

If a, b, c are real numbers and a² + b² + c² = 2(a - b - c) - 3, then the value of a + b + c is

• -1

• 1

• 3

• 3

If x + y + z = 6, then the value of (x - 1)³ + (y - 2)³ + (z - 3)³ is

• 3 (x - 1) (y - 2) (z - 3)

• 3xyz

• (x - 1) (y - 2) (z - 3)

• (x - 1) (y - 2) (z - 3)

If 4pxy = (x + 2y)² - (x - 2y)², then what will be the value of p?

• 0.5

• 0.25

• 4

• 2

The value of x for which the expressions 12 - 6x and 4x + 2 become equal is:

• 0

• 2

• 1

• 4