Math, asked by suzukililly396, 6 months ago

Use geometric sequence formulas

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Answered by boghanishruti

0

Step-by-step explanation:

a1 = 20

aN = a(N-1)(3/2)

put N = 3

a3 = 20(3-1) (3/2)

a3 = 20×2×3/2

a3 = 20×3

a3 = 60

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