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If the 4th, 7th and 10th terms of a G.P....

If the 4th, 7th and 10th terms of a G.P. are a, b, c respectively, then

A

a) `a^2 = bc`

B

b) ` b^2 = ac`

C

c) ` c^2 = ab`

D

d) abc = 1

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