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The correct answer is D
If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?
If x4 + 1/(x4) = 194 , , then find the value of 1/(x3 ) + x3 ?
...(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?
If z + (1/z) = 2 then find z105 + 1/(z105) = ?
If (a + b) = 1 and (1/a) – 2b = 5/a then find the value of a2 + b2.
If 112 ÷28 x 22 –12 x 6 ÷ 3 +12 = z, then find the value of z.
A dishonest dealer claims to sell goods at cost price but uses a false weight of 900g instead of 1kg. What is his profit percentage?
If x + y + z = 10 and x² + y² + z² = 36, then what is the value of x y + y z + z x?
