x = a - \(\sqrt {3}\)
y = a
z = a +\(\sqrt {3}\)
then x3 + y3 + z3 - 3xyz = ?
Answer & explanation
Correct answer: option 2
If x, y and z are in A.P
then x3 + y3+ z3 - 3xyz = 9 × mid term × (a)2
= 9 × a × (\(\sqrt {3}\))2
= 27a
x = a - \(\sqrt {3}\)
y = a
z = a +\(\sqrt {3}\)
then x3 + y3 + z3 - 3xyz = ?
Correct answer: option 2
If x, y and z are in A.P
then x3 + y3+ z3 - 3xyz = 9 × mid term × (a)2
= 9 × a × (\(\sqrt {3}\))2
= 27a