Question

The period of Tan(x + 8x + 27x + ... +n3x) is​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

Tan (x+8x+27x...n³x)

tan{x(1+2³+3³....n³x)}

by sum of n terms formula

tan {x[n(n+1)]/2 }²

now, period = π/{n(n+1)/2}²  = 4π/{n(n+1)} ²