If a^ x =b^ y =c^ z and x,y,z are in GP then _c b is equal to

JEE Advanced Mathematics question

If and are in GP then is equal to

Answer: (A),(C)

Let (). Then , , . - (c): ✓ (needs only the first condition). - (a): $=xz⇒1{( }=1{ a

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Question ID VK-107873