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If sum(k=1)^(k=n)tan^(- 1)(2k)/(2+k^2+k^...

If `sum_(k=1)^(k=n)tan^(- 1)(2k)/(2+k^2+k^4)=tan^(- 1)(6/7),` then the value of 'n' is equal to

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RESONANCE DPP-JEE MAINS-All Questions
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  3. If sum(k=1)^(k=n)tan^(- 1)(2k)/(2+k^2+k^4)=tan^(- 1)(6/7), then the va...

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