Which of the following interchange of signs would make

 is equal to:

If (x - 1/x)² = 3, then the value of x⁶ + 1/x⁶ equals

If x² + y² + 2x + 1 = 0, therefore the value of x³¹ + y³⁵ is

The expression of (cot θ + cosec θ −1) / (cot θ − cosec θ+1) is equal to

Quantity I – In how many ways letters of MOBILE can be arranged when vowels are always together.

If 3x + 5y + 7z = 49 and 9x + 8y + 21z = 126, then what is the value of y?

If x sin³ θ + y cos³ θ = sin θ cos θ and x sin θ − y cos θ = 0, then the value of x² + y² equals

If 0 ≤ θ ≤ 90°, and sec¹⁰⁷ θ + cos¹⁰⁷ θ = 2, then. (secθ + cosθ) is equal to:

If x + y + z = 19, xyz = 216 and xy + yz + 2x = 114, then the value of √ x³ + y³ + z³ + xyz  is :

If 8x² + y² − 12x − 4xy + 9 = 0, then the value of (14x − 5y) is :