Who has won the Bal Sahitya Puraskar 2021 for the

If x = 8.15, y = 9.06 and z = –17.21, then the value of x³ + y³ + z³ – 3xyz is:

If (a + b) = 9 and ab = 14, find the value of (a² + b²).

 If x + 1/x = 2, find x⁷ + 1/x⁷.

If x, y, z are the three factors of a ³– 7a – 6, then value of x + y + z will be

If x ²  – 15x + 51 = 0, then determine the value of (x – 5) + {1/(x – 5)}.

if a² + b² + c² = 2(4a -5b -9c)-122 , then a-b-c = ?

if x² – 2x + 1 = 0, then find the value of (x⁷ + x⁵ + x⁴ + x²)/x ?

((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?

(p + q) = 8 and (p² + q² - 6) = 28. If p < q, then determine the value of (p/q).