Question

If tan^2x + cot^2x +1=0 find value of tan^66x + tan^36x+ tan^18x+ tan^ 12x +1

Answer 1

the question provided by you is

tan^2x + cot^2x+1=0

now tan^2x and cot^2x will be positive for all x belongs to R.

hence, there can't be exist any real x for which tan^2x + cot^2x + 1 = 0

so we cannot proceed further as given equation doesn't give any real solution.

hope you are clear for this information.

thanks