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If cos(A - B) =√3/2and cot(A + B) = 1/√3, where A - B and A + B are acute angles, then (2A - 3B) is equal to:
If 
= 2 then find
If [8(x + y)3 – 27(x – y)3] ÷ (5y – x) = Ax2 + Bxy + Cy2, then the value of (A2 - 2B + 3C)...
If x = 21, then the value of x5 - 22x4 + 22x3 - 22x2 + 22x - 1 is
If (a - b - c) = 6, and (ab - bc + ca) = 117, then find the value of (a2 + b2 + c2)
If x + y + z = 4, xyz = 6 & x2 + y2 + z2 = 8 then find the value of x3 + y3 + z3.
If x = 222, y = 223 and z = 224, then find the value of x³ + y³ + z³ – 3xyz
If (a – 8) 2 + (b + 2) 2 + (c – 3) 2 = 0, then find the value √(a +b + c).
...If x, y and z are real numbers such that (x-5)2+(y-7)2+(z-9)2= 0 then (x+y+z) is equal to
