Prove that  `(" sin  8x cos  x- sin 6x cos  3x")/(" cos  2x cos x - sin 4x sin 3x")= " tan " 2x`
Channel: Doubtnut
Date: 2020-04-19

Prove that  `(" sin  8x cos  x- sin 6x cos  3x")/(" cos  2x cos x - sin 4x sin 3x")= " tan " 2x`