(1 + 6u2 + u4) / (1 + u2 + u4 + u6) with respect to u.

Dear srikant

(1 + 6u² + u⁴) / (1 + u² + u⁴ + u⁶)

use partial fraction

expression will become

-2/(1+u²)  +3(1+u²)/(1+u⁴)

now integrate

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