Evaluate:
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It might help to know: x^6-a^6+a^2*x^4-a^4*x^2=(x^4-a^4)(x^2+a^2)
Originally Posted by sirsosay@gmail.com It might help to know: x^6-a^6+a^2*x^4-a^4*x^2=(x^4-a^4)(x^2+a^2) Thank you! I am still unable to get this: Answer: Spoiler:
Then partial fraction decomposition : find b,c,d,e such that : You should get
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