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If (1^(3)+2^(3)+3^(3)+... "upto n terms"...

If `(1^(3)+2^(3)+3^(3)+... "upto n terms")/(1*3+2*5+3*7+... "upto n terms")=(9)/(5)`,then the value of n is

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JEE MAINS PREVIOUS YEAR-JEE MAINS 2023 JAN ACTUAL PAPER-Question
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