If the value of \\sum_{r=1} ^{5}(x^{r}+{1}/{x^{r}})^{2}, where x^{2}+x+1=0

JEE Advanced 2021 Full Test 4 Paper 2

SECTION – B (Single Digit Integer Type)
This section contains 06 questions. The answer to each question is a Single Digit integer ranging from 0 to 9, both inclusive.

Question : 43 of 54

Marks: +1, -0

If the value of

∑

r=1

(xr+

)2, where x2+x+1=0

Your Answer:

Validate

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