(x+ \frac{1}{x})^{2}+(x^{2}+ \frac{1}{x^{2}})^{2}+(x^{3}+ \frac{1}{x^{3}})^{2} ....upto n terms is

Correct Answer is : x2n−1x2−1×x2n+2+1x2n+2n

{x^{2n}-1}/{x^{2}-1}\times {x^{2n+2}+1}/{x^{2n}}+2n

{x^{2n}+1}/{x^{2}+1}\times {x^{2n+2}-1}/{x^{2n}}-2n

{x^{2n}-1}/{x^{2}-1}\times {x^{2n}-1}/{x^{2n}}-2n

BITSAT 2016 Paper

Section: Mathematics

Question : 93 of 150

Marks: +1, -0

(x+‌‌

)2+(x2+‌‌

)2+(x3+‌‌

....upto n terms is

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