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If P = 18, Q = 21, R = -6 and S = -4, Calculate…

If P = 18, Q = 21, R = -6 and S = -4, Calculate (frac{(P- Q)^3 + S^2}{R^3}) 

  • A.
    (frac{-11}{216})
  • B.
    (frac{11}{216})
  • C.
    (frac{-43}{116})
  • D.
    (frac{43}{116})
Correct Answer: Option B
Explanation

(frac{(P- Q)^3 + S^2}{R^3}) = (frac{(18 – 21)^3 + (-4)^2}{(-6)^3})
= (frac{-27 + 16}{R^3})
= (frac{-11}{-216})
= (frac{11}{216})