3. Without actually calculating the cubes, find the value of the following: (27)3-(14)³-(13)³
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3. Without actually calculating the cubes, find the value of the following: (27)3-(14)³-(13)³
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Answer:
x+y+z = 27+(-14)+(-13) = 27-14-13= 0
We know that if x+y+z=0 then x3+y3+z3 =3xyz ..
So, 3×27×-14×-13 = 14742 Ans .....