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Question

If xy2=a3,yz2=b3 and zx2=c3 then z3 equals
  1. bc4a2
  2. b4ca2
  3. b2c4a2
  4. ab4c2

A
bc4a2
B
b4ca2
C
ab4c2
D
b2c4a2
Solution
Verified by Toppr

xy2=a3 (1)
yz2=b3 (2)
zx2=c3 (3)
From (3) z=c3x2 (4)
Substituting value of x from (1) in (4)
z=c3(a3y2)2=c3y4a6 (5)
Substituting value of y from (2) in (5)
z=c3(b3z2)4a6=c3b12z8a6 (6)
From (6)
z9=c3b12a6
z3=cb4a2

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