xy = z, yz = x, zx = y হয়, তাহলে নিচের কোনটি সঠিক?

A xyz = 0

B xy = 1/z

C xyz = 1

D খ ও গ

Solution

Correct Answer: Option D

দেওয়া আছে
 xy = z, yz = x, zx = y

এখানে
xy = z
বা, (yz)y = z
বা, yyz = z
বা, (zx)yz = z
বা, zxyz = z1
বা, xyz = 1
∴ xy = 1/z

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