As per the Contract Act an Agents authority has to be____________

If  (a³+1)/(a+1) = (a³-1)/(a-1) and a ≠ 1, -1. Find the value of  'a'

If x + y + z = 4, xyz = 6 & x² + y² + z² = 8 then find the value of x³ + y³ + z³.

If ab + bc + ca = 0

Find the value of 1/(a² - bc) + 1/(b² - ca) + 1/(c² - ab)

If x = 99, then the value of x⁵ - 100x⁴ + 100x³ - 100x² + 100x - 1 is

(288 ÷ 8)² × (144 ÷ 24)³ = 24 × ? × (51840 ÷ 20)

If x^2a = y^2b =z^2c≠ 0 and x²= yz, then the value of (ab + bc + ca) /bc is :

If (a + b + c) = 9, find (a – 4)³ + (b – 2)³ + ( c – 3)³ - 3(a – 4 ) (b – 2 ) (c – 3)?

If a – b – c = 0, then the value of (a² + b² + c²)/(b + ac) is: