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If x = (1*3)/(3*6)+(1*3*5)/(3*6*9)+(1*3*...

If `x = (1*3)/(3*6)+(1*3*5)/(3*6*9)+(1*3*5*7)/(3*6*9*12)+. . . ` to infinite terms, then `9x^(2) + 24 x = `

A

31

B

11

C

41

D

21

Text Solution

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The correct Answer is:
B
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