Find the value of a,if a,a-2,a+1are in gp

1.	Find the value of a,if a,a-2,a+1are in gp
Answer» Can you imagine a world without merchants, where we are left to our own devices to acquire goods and services without middlemen? SOUNDS like a harsh place to be. The SALE and TRADE of goods defines MUCH of the development and history of the world. Please mark me as Brainlist.

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Can you imagine a world without merchants, where we are left to our own devices to acquire goods and services without middlemen? SOUNDS like a harsh place to be. The SALE and TRADE of goods defines MUCH of the development and history of the world.

Please mark me as Brainlist.

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Find the value of a,if a,a-2,a+1are in gp​

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Find the value of a,if a,a-2,a+1are in gp