If `tanx + tan^2 x + tan^8 x = 1`, then the value of `2cos^6 x-2cos^4+cos^2 x` equals to
19 views · Published 13 October 2018 · 3:11 · Indexed 27 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `tanx + tan^2 x + tan^8 x = 1`, then the value of `2cos^6 x-2cos^4+cos^2 x` equals to
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