Sin2x-sin3x+sin4x ________________ = cos2x-cos3x+cos4x

Question

Sin2x-sin3x+sin4x
________________ =
cos2x-cos3x+cos4x

Answer 1

Sin2x/cos2x - sin3x/cos3x + sin4x/cos4x
tg2x - tg3x + tg4x