Question Number 157217 by MathsFan last updated on 21/Oct/21
$${show}\:{that} \\ $$$$\:\frac{{cos}\mathrm{2}{x}+{cos}\mathrm{3}{x}+{cos}\mathrm{8}{x}}{{sin}\mathrm{2}{x}+{sin}\mathrm{3}{x}+{sin}\mathrm{8}{x}}={tanx} \\ $$
Commented by som(math1967) last updated on 21/Oct/21
$${please}\:{check}\:{your}\:{question} \\ $$
Commented by MathsFan last updated on 21/Oct/21
$${ok}\:{sir} \\ $$